FreeBSD Security Advisory FreeBSD-SA-19:07.mds [REVISED]

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:07.mdsSecurity Advisory
  The FreeBSD Project

Topic:  Microarchitectural Data Sampling (MDS)

Category:   core
Module: kernel
Announced:  2019-05-14
Credits:Refer to Intel's security advisory at the URL below for
detailed acknowledgements.
Affects:All supported versions of FreeBSD.
Corrected:  2019-05-14 17:04:00 UTC (stable/12, 12.0-STABLE)
2019-05-14 23:19:08 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-05-14 17:05:02 UTC (stable/11, 11.3-PRERELEASE)
2019-05-14 23:20:16 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2018-12126, CVE-2018-12127, CVE-2018-12130,
CVE-2019-11091

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

0.   Revision history

v1.0   2019-05-14  Initial release.
v1.1   2019-05-15  Fixed date on microcode update package.
v1.2   2019-05-15  Userland startup microcode update details added.
   Add language specifying which manufacturers is affected.

I.   Background

Modern processors make use of speculative execution, an optimization
technique which performs some action in advance of knowing whether the
result will actually be used.

II.  Problem Description

On some Intel processors utilizing speculative execution a local process may
be able to infer stale information from microarchitectural buffers to obtain
a memory disclosure.

III. Impact

An attacker may be able to read secret data from the kernel or from a
process when executing untrusted code (for example, in a web browser).

IV.  Workaround

No workaround is available.

Only Intel x86 based processors are affected.  x86 processors from other
manufacturers (eg, AMD) are not believed to be vulnerable.

Systems with users or processors in different trust domains should disable
Hyper-Threading by setting the machdep.hyperthreading_allowed tunable to 0:

# echo 'machdep.hyperthreading_allowed=0 >> /boot/loader.conf'
# shutdown -r +10min "Security update"

V.   Solution

Perform one of the following:

Update CPU microcode, upgrade your vulnerable system to a supported FreeBSD
stable or release / security branch (releng) dated after the correction date,
evaluate mitigation and Hyper Threading controls, and reboot the system.

New CPU microcode may be available in a BIOS update from your system vendor,
or by installing the devcpu-data package or sysutils/devcpu-data port.
Ensure that the BIOS update or devcpu-data package is dated after 2019-05-14.

If using the package or port the Intel microcode update can be applied at
boot time (only on FreeBSD 12 and later) by adding the following lines to the
system's /boot/loader.conf:

cpu_microcode_load="YES"
cpu_microcode_name="/boot/firmware/intel-ucode.bin"

To automatically load microcode during userland startup (supported on all
FreeBSD versions), add the following to /etc/rc.conf:

microcode_update_enable="YES"

1) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Follow additional details under "Mitigation Configuration" below.

2) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

[FreeBSD 12.0-STABLE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12-stable.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12-stable.patch.asc
# gpg --verify mds.12-stable.patch.asc

[FreeBSD 12.0-RELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12.0.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12.0.patch.asc
# gpg --verify mds.12.0.patch.asc

[FreeBSD 11.3-PRERELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11-stable.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11-stable.patch.asc
# gpg --verify mds.11-stable.patch.asc

[FreeBSD 11.2-RELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11.2.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11.2.patch.asc
# gpg --verify mds.11.2.patch.asc

b) Apply the patch.  Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch

c) Recompile your kernel as described in
https://www.FreeBSD.org/handbook/kernelconfig.html>.

Mitigation Configuration

Systems with users, processes, or virtual machines in 

FreeBSD Security Advisory FreeBSD-SA-19:07.mds

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:07.mdsSecurity Advisory
  The FreeBSD Project

Topic:  Microarchitectural Data Sampling (MDS)

Category:   core
Module: kernel
Announced:  2019-05-14
Credits:Refer to Intel's security advisory at the URL below for
detailed acknowledgements.
Affects:All supported versions of FreeBSD.
Corrected:  2019-05-14 17:04:00 UTC (stable/12, 12.0-STABLE)
2019-05-15 13:44:27 UTC (releng/12.0, 12.0-RELEASE-p5)
2019-05-14 17:05:02 UTC (stable/11, 11.3-PRERELEASE)
2019-05-14 23:20:16 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2018-12126, CVE-2018-12127, CVE-2018-12130,
CVE-2019-11091

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

0.   Revision history

v1.0   2019-05-14  Initial release.
v1.1   2019-05-15  Fixed date on microcode update package.
v1.2   2019-05-15  Userland startup microcode update details added.
   Add language specifying which manufacturers is affected.
v1.3   2019-05-15  Minor quoting nit for the HT disable loader config.
v2.0   2019-05-15  Rerelease 12.0-RELEASE patch as -p5 due to i386 panic bug.

I.   Background

Modern processors make use of speculative execution, an optimization
technique which performs some action in advance of knowing whether the
result will actually be used.

II.  Problem Description

On some Intel processors utilizing speculative execution a local process may
be able to infer stale information from microarchitectural buffers to obtain
a memory disclosure.

III. Impact

An attacker may be able to read secret data from the kernel or from a
process when executing untrusted code (for example, in a web browser).

IV.  Workaround

No workaround is available.

Only Intel x86 based processors are affected.  x86 processors from other
manufacturers (eg, AMD) are not believed to be vulnerable.

Systems with users or processors in different trust domains should disable
Hyper-Threading by setting the machdep.hyperthreading_allowed tunable to 0:

# echo 'machdep.hyperthreading_allowed=0' >> /boot/loader.conf
# shutdown -r +10min "Security update"

V.   Solution

Perform one of the following:

Update CPU microcode, upgrade your vulnerable system to a supported FreeBSD
stable or release / security branch (releng) dated after the correction date,
evaluate mitigation and Hyper Threading controls, and reboot the system.

New CPU microcode may be available in a BIOS update from your system vendor,
or by installing the devcpu-data package or sysutils/devcpu-data port.
Ensure that the BIOS update or devcpu-data package is dated after 2019-05-14.

If using the package or port the Intel microcode update can be applied at
boot time (only on FreeBSD 12 and later) by adding the following lines to the
system's /boot/loader.conf:

cpu_microcode_load="YES"
cpu_microcode_name="/boot/firmware/intel-ucode.bin"

To automatically load microcode during userland startup (supported on all
FreeBSD versions), add the following to /etc/rc.conf:

microcode_update_enable="YES"

1) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Follow additional details under "Mitigation Configuration" below.

2) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

[*** v2.0 NOTE *** Only applies to 12.0-RELEASE ***]
Due to an error in the 12.0-RELEASE affecting the i386 architecture, a new
set of patches is being released.  If your 12.0-RELEASE sources are not yet
patched using the initially published patch, then you need to apply the
mds.12.0.patch. If your sources are already updated, or patched with the
patch from the initial advisory, then you need to apply the incremental
patch, named mds.12.0.p4p5.patch

[FreeBSD 12.0-STABLE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12-stable.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12-stable.patch.asc
# gpg --verify mds.12-stable.patch.asc

[FreeBSD 12.0-RELEASE, not patched with initial SA-19:07.mds patch]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12.0.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12.0.patch.asc
# gpg --verify mds.12.0.patch.asc

[FreeBSD 12.0-RELEASE, patched with initial 

SEC Consult SA-20190515-0 :: Authorization Bypass in RSA NetWitness (@sec_consult)

2019-05-15 Thread SEC Consult Vulnerability Lab
SEC Consult Vulnerability Lab Security Advisory < 20190515-0 >
===
  title: Authorization Bypass
product: RSA NetWitness
 vulnerable version: <10.6.6.1, <11.2.1.1
  fixed version: 10.6.6.1, 11.2.1.1
 CVE number: CVE-2019-3724
 impact: Medium
   homepage: https://www.rsa.com
  found: 2018-09-18
 by: Mantas Juskauskas (Office Vilnius)
 SEC Consult Vulnerability Lab

 An integrated part of SEC Consult
 Europe | Asia | North America

 https://www.sec-consult.com

===

Vendor description:
---
"RSA provides more than 30,000 customers around the world with the essential
security capabilities to protect their most valuable assets from cyber
threats. With RSA's award-winning products, organizations effectively detect,
investigate, and respond to advanced attacks; confirm and manage identities;
and ultimately, reduce IP theft, fraud, and cybercrime."

Source: https://www.rsa.com/en-us/company/about


Business recommendation:

By exploiting the vulnerability documented in this advisory an unauthorized
attacker can access an administrative resource that may contain plain text
credentials to a 3rd party system.

The vendor provides a patch which should be installed on affected systems.


Vulnerability overview/description:
---
The authorization mechanism provided by the platform is prone to an 
authorization
bypass vulnerability, which can be easily exploited by authenticated (but low
privileged) remote attackers for gaining access to administrative information
including plaintext passwords.


Proof of concept:
-
A logged-in low privileged user (e.g. with role Analyst) is able to access
an administrative resource by calling the following URL:

https://[host]/admin/system/whois/properties

After the above URL is accessed, the server returns the following HTTP response
that contains sensitive information to a 3rd party whois service including
plaintext passwords:

HTTP/1.1 200 OK
Server: nginx
Date: [snip]
Content-Type: application/json;charset=UTF-8
Connection: close
X-Frame-Options: SAMEORIGIN
Cache-Control: no-cache, no-store, max-age=0, must-revalidate
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
X-Content-Type-Options: nosniff
Strict-Transport-Security: max-age=31536000 ; includeSubDomains
X-XSS-Protection: 1; mode=block
X-Frame-Options: SAMEORIGIN
Set-Cookie: [snip]
Content-Length: 795

{"success":true,"data":{"queryUrl":"https://[snip]","authUrl":"https://[snip]","userId":"[snip]","pw":"[snip]","allowedRequests":100,"allowedRequestsInterval":60,"queueMaxSize":10,"cacheMaxSize":5,"refreshInterval":30,"waitForHttpRequests":true,"settings":{"query-url":"https://[snip]","queue-max-size":10,"password":"[snip]","allowed-requests":100,"auth-url":"https://[snip]","user-id":"[snip]","refresh-interval-seconds":{"seconds":2592000,"milliSeconds":259200},"cache-max-size":5,"wait-for-http-request":true,"allowed-requests-interval-seconds":{"seconds":60,"milliSeconds":6



Vulnerable / tested versions:
-
The identified vulnerability has been verified to exist in the
RSA NetWitness platform, version 11.1.0.1.

According to the vendor, platform version 10 is also affected.

The following versions are vulnerable:
* <10.6.6.1
* <11.2.1.1


Vendor contact timeline:

2018-10-01: Contacting vendor through PGP via sec...@dell.com
2018-10-02: Vendor acknowledges the information was received, forwards
the info to the relevant department
2018-10-11: Vendor confirms the impact of the authorization issue,
starts to work on the remediation timeline
2018-10-15: Vendor provides additional information
2018-10-22: Contacting vendor to provide the remediation timeline
2018-10-23: Further email exchange related to the remediation timeline
2019-01-18: Vendor provides an update on the fix timeline
2019-03-05: Asking for a status update
2019-03-06: Vendor provides a status update on the release, patch for
platform version 11 will be released in March, version 10
Mid-April
2019-04-01: Asking for a specific release date & further status update
2019-04-01: Vendor: release is scheduled for 23rd April 2019, but may change,
they will inform us
2019-05

FreeBSD Security Advisory FreeBSD-SA-19:07.mds

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:07.mdsSecurity Advisory
  The FreeBSD Project

Topic:  Microarchitectural Data Sampling (MDS)

Category:   core
Module: kernel
Announced:  2019-05-14
Credits:Refer to Intel's security advisory at the URL below for
detailed acknowledgements.
Affects:All supported versions of FreeBSD.
Corrected:  2019-05-14 17:04:00 UTC (stable/12, 12.0-STABLE)
2019-05-14 23:19:08 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-05-14 17:05:02 UTC (stable/11, 11.3-PRERELEASE)
2019-05-14 23:20:16 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2018-12126, CVE-2018-12127, CVE-2018-12130,
CVE-2019-11091

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

I.   Background

Modern processors make use of speculative execution, an optimization
technique which performs some action in advance of knowing whether the
result will actually be used.

II.  Problem Description

On some Intel processors utilizing speculative execution a local process may
be able to infer stale information from microarchitectural buffers to obtain
a memory disclosure.

III. Impact

An attacker may be able to read secret data from the kernel or from a
process when executing untrusted code (for example, in a web browser).

IV.  Workaround

No workaround is available.

Systems with users or processors in different trust domains should disable
Hyper-Threading by setting the machdep.hyperthreading_allowed tunable to 0:

# echo 'machdep.hyperthreading_allowed=0 >> /boot/loader.conf'
# shutdown

V.   Solution

Perform one of the following:

Update CPU microcode, upgrade your vulnerable system to a supported FreeBSD
stable or release / security branch (releng) dated after the correction date,
evaluate mitigation and Hyper Threading controls, and reboot the system.

New CPU microcode may be available in a BIOS update from your system vendor,
or by installing the devcpu-data package or sysutils/devcpu-data port.
Ensure that the BIOS update or devcpu-data package is dated after 2014-05-14.

If using the package or port the microcode update can be applied at boot time
by adding the following lines to the system's /boot/loader.conf:

cpu_microcode_load="YES"
cpu_microcode_name="/boot/firmware/intel-ucode.bin"

Microcode updates can also be applied while the system is running.  See
cpucontrol(8) for details.

1) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Follow additional details under "Mitigation Configuration" below.

2) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

[FreeBSD 12.0-STABLE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12-stable.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12-stable.patch.asc
# gpg --verify mds.12-stable.patch.asc

[FreeBSD 12.0-RELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12.0.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.12.0.patch.asc
# gpg --verify mds.12.0.patch.asc

[FreeBSD 11.3-PRERELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11-stable.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11-stable.patch.asc
# gpg --verify mds.11-stable.patch.asc

[FreeBSD 11.2-RELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11.2.patch
# fetch https://security.FreeBSD.org/patches/SA-19:07/mds.11.2.patch.asc
# gpg --verify mds.11.2.patch.asc

b) Apply the patch.  Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch

c) Recompile your kernel as described in
https://www.FreeBSD.org/handbook/kernelconfig.html>.

Mitigation Configuration

Systems with users, processes, or virtual machines in different trust
domains should disable Hyper-Threading by setting the
machdep.hyperthreading_allowed tunable to 0:

# echo machdep.hyperthreading_allowed=0 >> /boot/loader.conf

To activate the MDS mitigation set the hw.mds_disable sysctl.  The settings
are:

0 - mitigation disabled
1 - VERW instruction (microcode) mitigation enabled
2 - Software sequence mitigation enabled (not recommended)
3 - Automatic VERW or Software selection

Automatic mode uses the VERW instruction if supported by the CPU / microcode,
or 

FreeBSD Security Advisory FreeBSD-SA-19:05.pf

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:05.pf Security Advisory
  The FreeBSD Project

Topic:  IPv6 fragment reassembly panic in pf(4)

Category:   contrib
Module: pf
Announced:  2019-05-14
Credits:Synacktiv
Affects:All supported versions of FreeBSD
Corrected:  2019-03-01 18:12:05 UTC (stable/12, 12.0-STABLE)
2019-05-14 23:10:21 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-03-01 18:12:07 UTC (stable/11, 11.3-PRERELEASE)
2019-05-14 23:10:21 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2019-5597

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

I.   Background

pf(4) is an Internet Protocol packet filter originally written for OpenBSD.
In addition to filtering packets, it also has packet normalization
capabilities.

II.  Problem Description

A bug in the pf(4) IPv6 fragment reassembly logic incorrectly uses the last
extension header offset from the last received packet instead of from the
first packet.

III. Impact

Malicious IPv6 packets with different IPv6 extensions could cause a kernel
panic or potentially a filtering rule bypass.

IV.  Workaround

Only systems leveraging the pf(4) firewall and include packet scrubbing using
the recommended 'scrub all in' or similar are affected.

V.   Solution

Perform one of the following:

1) Upgrade your vulnerable system to a supported FreeBSD stable or
release / security branch (releng) dated after the correction date.
Afterwards, reboot the system.

2) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Afterwards, reboot the system.

3) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

# fetch https://security.FreeBSD.org/patches/SA-19:05/pf.patch
# fetch https://security.FreeBSD.org/patches/SA-19:05/pf.patch.asc
# gpg --verify pf.patch.asc

b) Apply the patch.  Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch

c) Recompile your kernel as described in
https://www.FreeBSD.org/handbook/kernelconfig.html> and reboot the
system.

VI.  Correction details

The following list contains the correction revision numbers for each
affected branch.

Branch/path  Revision
- -
stable/12/r344706
releng/12.0/  r347591
stable/11/r344707
releng/11.2/  r347591
- -

To see which files were modified by a particular revision, run the
following command, replacing NN with the revision number, on a
machine with Subversion installed:

# svn diff -cNN --summarize svn://svn.freebsd.org/base

Or visit the following URL, replacing NN with the revision number:

https://svnweb.freebsd.org/base?view=revision=NN>

VII. References

https://www.synacktiv.com/ressources/Synacktiv_OpenBSD_PacketFilter_CVE-2019-5597_ipv6_frag.pdf>

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5597>

The latest revision of this advisory is available at
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:05.pf.asc>
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[SECURITY] [DSA 4447-1] intel-microcode security update

2019-05-15 Thread Moritz Muehlenhoff
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

- -
Debian Security Advisory DSA-4447-1   secur...@debian.org
https://www.debian.org/security/   Moritz Muehlenhoff
May 15, 2019  https://www.debian.org/security/faq
- -

Package: intel-microcode
CVE ID : CVE-2018-12126 CVE-2018-12127 CVE-2018-12130
 CVE-2019-11091

This update ships updated CPU microcode for most types of Intel CPUs. It
provides mitigations for the MSBDS, MFBDS, MLPDS and MDSUM hardware
vulnerabilities.

To fully resolve these vulnerabilities it is also necessary to update
the Linux kernel packages as released in DSA .

For the stable distribution (stretch), these problems have been fixed in
version 3.20190514.1~deb9u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/intel-microcode

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-annou...@lists.debian.org
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FreeBSD Security Advisory FreeBSD-SA-19:06.pf

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:06.pf Security Advisory
  The FreeBSD Project

Topic:  ICMP/ICMP6 packet filter bypass in pf

Category:   contrib
Module: pf
Announced:  2019-05-14
Credits:Synacktiv
Affects:All supported versions of FreeBSD
Corrected:  2019-03-21 14:17:10 UTC (stable/12, 12.0-STABLE)
2019-05-14 23:12:22 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-03-21 14:17:12 UTC (stable/11, 11.3-PRERELEASE)
2019-05-14 23:12:22 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2019-5598

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

I.   Background

pf(4) is an Internet Protocol packet filter originally written for OpenBSD.
In addition to filtering packets, it also has packet normalization
capabilities.

II.  Problem Description

States in pf(4) let ICMP and ICMP6 packets pass if they have a packet in
their payload matching an existing condition.  pf(4) does not check if the
outer ICMP or ICMP6 packet has the same destination IP as the source IP of
the inner protocol packet.

III. Impact

A maliciously crafted ICMP/ICMP6 packet could bypass the packet filter rules
and be passed to a host that would otherwise be unavailable.

IV.  Workaround

No workaround is available.

V.   Solution

Perform one of the following:

1) Upgrade your vulnerable system to a supported FreeBSD stable or
release / security branch (releng) dated after the correction date.
Afterwards, reboot the system.

2) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Afterwards, reboot the system.

3) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

# fetch https://security.FreeBSD.org/patches/SA-19:06/pf.patch
# fetch https://security.FreeBSD.org/patches/SA-19:06/pf.patch.asc
# gpg --verify pf.patch.asc

b) Apply the patch.  Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch

c) Recompile your kernel as described in
https://www.FreeBSD.org/handbook/kernelconfig.html> and reboot the
system.

VI.  Correction details

The following list contains the correction revision numbers for each
affected branch.

Branch/path  Revision
- -
stable/12/r345377
releng/12.0/  r347593
stable/11/r345378
releng/11.2/  r347593
- -

To see which files were modified by a particular revision, run the
following command, replacing NN with the revision number, on a
machine with Subversion installed:

# svn diff -cNN --summarize svn://svn.freebsd.org/base

Or visit the following URL, replacing NN with the revision number:

https://svnweb.freebsd.org/base?view=revision=NN>

VII. References

https://www.synacktiv.com/posts/systems/icmp-reachable.html>

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5598>

The latest revision of this advisory is available at
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc>
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FreeBSD Security Advisory FreeBSD-SA-19:03.wpa

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:03.wpaSecurity Advisory
  The FreeBSD Project

Topic:  Multiple vulnerabilities in hostapd and wpa_supplicant

Category:   contrib
Module: wpa
Announced:  2019-05-14
Affects:All supported versions of FreeBSD.
Corrected:  2019-05-01 01:42:38 UTC (stable/12, 12.0-STABLE)
2019-05-14 22:57:29 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-05-01 01:43:17 UTC (stable/11, 11.2-STABLE)
2019-05-14 22:59:32 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2019-9494, CVE-2019-9495, CVE-2019-9496, CVE-2019-9497,
CVE-2019-9498, CVE-2019-9499, CVE-2019-11555

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

I.   Background

Wi-Fi Protected Access II (WPA2) is a security protocol developed by the
Wi-Fi Alliance to secure wireless computer networks.

hostapd(8) and wpa_supplicant(8) are implementations of user space daemon for
access points and wireless client that implements the WPA2 protocol.

II.  Problem Description

Multiple vulnerabilities exist in the hostapd(8) and wpa_supplicant(8)
implementations.  For more details, please see the reference URLs in the
References section below.

III. Impact

Security of the wireless network may be compromised.  For more details,
please see the reference URLS in the References section below.

IV.  Workaround

No workaround is available, but systems not using hostapd(8) or
wpa_supplicant(8) are not affected.

V.   Solution

Perform one of the following:

1) Upgrade your vulnerable system to a supported FreeBSD stable or
release / security branch (releng) dated after the correction date.

Afterwards, restart hostapd(8) or wpa_supplicant(8).

2) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Afterwards, restart hostapd(8) or wpa_supplicant(8).

3) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

[FreeBSD 12.0]
# fetch https://security.FreeBSD.org/patches/SA-19:03/wpa-12.patch
# fetch https://security.FreeBSD.org/patches/SA-19:03/wpa-12.patch.asc
# gpg --verify wpa-12.patch.asc

[FreeBSD 11.2]
# fetch https://security.FreeBSD.org/patches/SA-19:03/wpa-11.patch
# fetch https://security.FreeBSD.org/patches/SA-19:03/wpa-11.patch.asc
# gpg --verify wpa-11.patch.asc

b) Apply the patch.  Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch

c) Recompile the operating system using buildworld and installworld as
described in https://www.FreeBSD.org/handbook/makeworld.html>.

Restart the applicable daemons, or reboot the system.

VI.  Correction details

The following list contains the correction revision numbers for each
affected branch.

Branch/path  Revision
- -
stable/12/r346980
releng/12.0/  r347587
stable/11/r346981
releng/11.2/  r347588
- -

To see which files were modified by a particular revision, run the
following command, replacing NN with the revision number, on a
machine with Subversion installed:

# svn diff -cNN --summarize svn://svn.freebsd.org/base

Or visit the following URL, replacing NN with the revision number:

https://svnweb.freebsd.org/base?view=revision=NN>

VII. References

https://w1.fi/security/2019-1>
https://w1.fi/security/2019-2>
https://w1.fi/security/2019-3>
https://w1.fi/security/2019-4>
https://w1.fi/security/2019-5>

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9494>
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9495>
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9496>
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9497>
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9498>
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9499>
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11555>

The latest revision of this advisory is available at

FreeBSD Security Advisory FreeBSD-SA-19:04.ntp

2019-05-15 Thread FreeBSD Security Advisories
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

=
FreeBSD-SA-19:04.ntpSecurity Advisory
  The FreeBSD Project

Topic:  Authenticated denial of service in ntpd

Category:   contrib
Module: ntp
Announced:  2019-05-14
Credits:Magnus Stubman
Affects:All supported versions of FreeBSD
Corrected:  2019-03-07 13:45:36 UTC (stable/12, 12.0-STABLE)
2019-05-14 23:02:56 UTC (releng/12.0, 12.0-RELEASE-p4)
2019-03-07 13:45:36 UTC (stable/11, 11.3-PRERELEASE)
2019-05-14 23:06:26 UTC (releng/11.2, 11.2-RELEASE-p10)
CVE Name:   CVE-2019-8936

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit https://security.FreeBSD.org/>.

I.   Background

The ntpd(8) daemon is an implementation of the Network Time Protocol
(NTP) used to synchronize the time of a computer system to a reference
time source.  The ntpd(8) daemon uses a protocol called mode 6 to both get
status information from the running ntpd(8) daemon and configure it on the
fly.  This protocol is typically used by the ntpq(8) program, among others.

II.  Problem Description

A crafted malicious authenticated mode 6 packet from a permitted network
address can trigger a NULL pointer dereference.

Note for this attack to work, the sending system must be on an address from
which the target ntpd(8) accepts mode 6 packets, and must use a private key
that is specifically listed as being used for mode 6 authorization.

III. Impact

The ntpd daemon can crash due to the NULL pointer dereference, causing a
denial of service.

IV.  Workaround

Use 'restrict noquery' in the ntpd configuration to limit addresses that
can send mode 6 queries.

V.   Solution

Perform one of the following:

1) Upgrade your vulnerable system to a supported FreeBSD stable or
release / security branch (releng) dated after the correction date.

2) To update your vulnerable system via a binary patch:

Systems running a RELEASE version of FreeBSD on the i386 or amd64
platforms can be updated via the freebsd-update(8) utility:

# freebsd-update fetch
# freebsd-update install

Afterwards, restart the ntpd service:
# service ntpd restart

3) To update your vulnerable system via a source code patch:

The following patches have been verified to apply to the applicable
FreeBSD release branches.

a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.

[FreeBSD 12.0]
# fetch https://security.FreeBSD.org/patches/SA-19:04/ntp.patch
# fetch https://security.FreeBSD.org/patches/SA-19:04/ntp.patch.asc
# gpg --verify ntp.patch.asc

[FreeBSD 11.2-RELEASE/11.3-PRERELEASE]
# fetch https://security.FreeBSD.org/patches/SA-19:04/ntp-11.2.patch
# fetch https://security.FreeBSD.org/patches/SA-19:04/ntp-11.2.patch.asc
# gpg --verify ntp-11.2.patch.asc

b) Apply the patch.  Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch

c) Recompile the operating system using buildworld and installworld as
described in https://www.FreeBSD.org/handbook/makeworld.html>.

Restart the ntpd service, or reboot the system.

VI.  Correction details

The following list contains the correction revision numbers for each
affected branch.

Branch/path  Revision
- -
stable/12/r344884
releng/12.0/  r347589
stable/11/r344884
releng/11.2/  r347590
- -

To see which files were modified by a particular revision, run the
following command, replacing NN with the revision number, on a
machine with Subversion installed:

# svn diff -cNN --summarize svn://svn.freebsd.org/base

Or visit the following URL, replacing NN with the revision number:

https://svnweb.freebsd.org/base?view=revision=NN>

VII. References

http://support.ntp.org/bin/view/Main/SecurityNotice#March_2019_ntp_4_2_8p13_NTP_Rele>

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8936>

The latest revision of this advisory is available at
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:04.ntp.asc>
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[SECURITY] [DSA 4446-1] lemonldap-ng security update

2019-05-15 Thread Moritz Muehlenhoff
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

- -
Debian Security Advisory DSA-4446-1   secur...@debian.org
https://www.debian.org/security/   Moritz Muehlenhoff
May 14, 2019  https://www.debian.org/security/faq
- -

Package: lemonldap-ng
CVE ID : CVE-2019-12046

It was discovered that the Lemonldap::NG web SSO system performed
insuffient validation of session tokens if the "tokenUseGlobalStorage"
option is enabled, which could grant users with access to the main
session database access to an anonymous session.

For the stable distribution (stretch), this problem has been fixed in
version 1.9.7-3+deb9u1.

We recommend that you upgrade your lemonldap-ng packages.

For the detailed security status of lemonldap-ng please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/lemonldap-ng

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-annou...@lists.debian.org
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[SECURITY] [DSA 4444-1] linux security update

2019-05-15 Thread Salvatore Bonaccorso
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

- -
Debian Security Advisory DSA--1   secur...@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
May 14, 2019  https://www.debian.org/security/faq
- -

Package: linux
CVE ID : CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091
Debian Bug : 928125

Multiple researchers have discovered vulnerabilities in the way the
Intel processor designs have implemented speculative forwarding of data
filled into temporary microarchitectural structures (buffers). This
flaw could allow an attacker controlling an unprivileged process to
read sensitive information, including from the kernel and all other
processes running on the system or cross guest/host boundaries to read
host memory.

See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html
for more details.

To fully resolve these vulnerabilities it is also necessary to install
updated CPU microcode. An updated intel-microcode package (only
available in Debian non-free) will be provided via a separate DSA. The
updated CPU microcode may also be available as part of a system firmware
("BIOS") update.

In addition, this update includes a fix for a regression causing
deadlocks inside the loopback driver, which was introduced by the update
to 4.9.168 in the last Stretch point release.

For the stable distribution (stretch), these problems have been fixed in
version 4.9.168-1+deb9u2.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/linux

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-annou...@lists.debian.org
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[SECURITY] [DSA 4445-1] drupal7 security update

2019-05-15 Thread Moritz Muehlenhoff
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

- -
Debian Security Advisory DSA-4445-1   secur...@debian.org
https://www.debian.org/security/   Moritz Muehlenhoff
May 14, 2019  https://www.debian.org/security/faq
- -

Package: drupal7
CVE ID : CVE-2019-11831

It was discovered that incomplete validation in a Phar processing
library embedded in Drupal, a fully-featured content management
framework, could result in information disclosure.

For additional information, please refer to the upstream advisory
at https://www.drupal.org/sa-core-2019-007.

For the stable distribution (stretch), this problem has been fixed in
version 7.52-2+deb9u9.

We recommend that you upgrade your drupal7 packages.

For the detailed security status of drupal7 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/drupal7

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-annou...@lists.debian.org
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