[SECURITY] [DSA 4504-1] vlc security update
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 - - Debian Security Advisory DSA-4504-1 secur...@debian.org https://www.debian.org/security/ Moritz Muehlenhoff August 20, 2019 https://www.debian.org/security/faq - - Package: vlc CVE ID : CVE-2019-13602 CVE-2019-13962 CVE-2019-14437 CVE-2019-14438 CVE-2019-14498 CVE-2019-14533 CVE-2019-14534 CVE-2019-14535 CVE-2019-14776 CVE-2019-14777 CVE-2019-14778 CVE-2019-14970 Multiple security issues were discovered in the VLC media player, which could result in the execution of arbitrary code or denial of service if a malformed file/stream is processed. For the oldstable distribution (stretch), these problems have been fixed in version 3.0.8-0+deb9u1. For the stable distribution (buster), these problems have been fixed in version 3.0.8-0+deb10u1. We recommend that you upgrade your vlc packages. For the detailed security status of vlc please refer to its security tracker page at: https://security-tracker.debian.org/tracker/vlc 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 -BEGIN PGP SIGNATURE- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAl1cbfoACgkQEMKTtsN8 TjahTxAAiWyxMxxc2KLdqiajI5UHFIAdakLsax2DDtTDD5KKkKMqp4BNuIfzuWSS ffiMaCfs7Wev1HV8NarnffCxEO5SnEvE6AQ8TVZwbw4hVZ1ajA30Ycs/73aPhQsK 4IZKCxhZqSjE0bL3l41kqVVhcduauBI1SzGK3++nE6Gsljv9pxQOvwwTzZeQR+rr Apg61rnlsW9kqerDGL8GysfSBWpSPyW3RkcWwd5j+AFQCY7TmRKRDLM7PY3Fvgjp izF+e3WWrIl4mhJTWn4XdvFJAcoB5XKPkYUnnuq4bjCNEFdEF3MFO1gJdQMslQLe RNfLQ1q0xLegICYlXCOt7ec/bkcgofAav3hrtkd7KdqRsguL910/2QxI6k8fX45z ifUwzMCf5WnxR2R4M1viPdi0PnnsIouEEI21ERQRaB5Lro1xslOt8wgYexIDSQX4 IWq0J9Y6xd8TvGrCMSpRp8oshAfjVcR50O9vxCJelc7n8Pan1pOGjLXhgivUVYaY J7e+03c3zILgp+MHCw1m6gk31ria81r0TcOxQx3DFamB6GRo8zN1cPaXhaKRC2b8 qrog0oOYcET0mPzFUHV0olzOPrM8DXPKyUkU90hqjaODMf0Zuv2jPb1YIql4CWEy hBpqn1pMmMVHaj3BzQN6lEezoxd5gF7fwUMrKbk6xpdlLmmj6vA= =aXUT -END PGP SIGNATURE-
SEC Consult SA-20190821-0 :: Unauthenticated sensitive information leakage in Zoho Corporation ManageEngine ServiceDesk Plus
SEC Consult Vulnerability Lab Security Advisory < 20190821-0 > === title: Unauthenticated sensitive information leakage product: Zoho Corporation ManageEngine ServiceDesk Plus vulnerable version: v10 <10509 fixed version: v10 >=10509 CVE number: CVE-2019-15045, CVE-2019-15046 impact: Critical homepage: https://www.manageengine.com/products/service-desk/ found: 2019-06-27 by: Johannes Greil (Office Vienna) SEC Consult Vulnerability Lab An integrated part of SEC Consult Europe | Asia | North America https://www.sec-consult.com === Vendor description: --- "ServiceDesk Plus is a game changer in turning IT teams from daily fire-fighting to delivering awesome customer service. It provides great visibility and central control in dealing with IT issues to ensure that businesses suffer no downtime. For 10 years and running, it has been delivering smiles to millions of IT folks, end users, and stakeholders alike." Source: https://www.manageengine.com/products/service-desk/ Business recommendation: The vendor provides a patched version and it should be installed immediately. Furthermore, a thorough security analysis is highly recommended as only a short spot check has been performed and further critical issues are to be expected. A workaround exists for mitigating vulnerability 1b (user enumeration). Vulnerability overview/description: --- 1) Unauthenticated sensitive information leakage a) Unauthenticated download of internal support ticket information (CVE-2019-15046) The software offers functionality (fosagent) that an unauthenticated attacker can exploit in order to gain information of internal "events". In our test it was possible to access sensitive internal information (tickets) written by users of this application in exchange with the support team. Depending on the contents of the tickets, sensitive data might leak through this functionality. It is likely, that it also depends on the configuration of ServiceDesk Plus which information is stored in those "events". b) User Enumeration in AjaxDomainServlet (CVE-2019-15045) It is possible to collect valid usernames by interacting with the "AjaxDomainServlet" function of the application without prior authentication. This vulnerability is useful to increase the efficiency of brute force attacks. If the username is known, it is easier to find the corresponding password. Furthermore, the servlet leaks information, whether the user is a locally configured or a domain user and it also leaks the internal domain names of the requested user account. According to the vendor, the affected feature is intended behaviour and a workaround in order to disable it has been provided (see further below). Proof of concept: - 1) Unauthenticated sensitive information leakage a) Unauthenticated download of internal support ticket information (CVE-2019-15046) The "fosagent" functionality provides a "download-file" servlet which an unauthenticated attacker can use in order to iterate through existing internal "events". The information that can be downloaded looks like internal ticket system information and other data exchanged between users and the help desk support team. It is necessary to supply the "log-pos" parameter given a number followed by a colon character and another number to access the corresponding event index. An attacker can just increment those numbers and access different information. https://$IP/fosagent/repl/download-file?log-pos=1:0 b) User Enumeration in AjaxDomainServlet (CVE-2019-15045) The following URL can be used to efficiently enumerate user accounts configured within ManageEngine ServiceDesk Plus. No prior authentication is required for this functionality. The "search" parameter is used for supplying the user account name. https://$IP/domainServlet/AJaxDomainServlet?action=searchLocalAuthDomain=$USER If the user exists and is a local user (configured within the web application) it will show "Not in Domain" as a result. If the user exists and is a domain user (e.g. LDAP) it will show the corresponding internal domain name as a result. If the page stays empty the user does not exist. Vulnerable / tested versions: - Version 10 has been tested. The vendor did not confirm whether older releases are affected as well. Vendor contact timeline: 2019-07-02: Contacting vendor through ManageEngine Security Response Center (MESRC) Uploaded security ad
FreeBSD Security Advisory FreeBSD-SA-19:24.mqueuefs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 = FreeBSD-SA-19:24.mqueuefs Security Advisory The FreeBSD Project Topic: Reference count overflow in mqueue filesystem 32-bit compat Category: core Module: kernel Announced: 2019-08-20 Credits:Karsten König, Secfault Security Affects:All supported versions of FreeBSD. Corrected: 2019-08-20 17:45:22 UTC (stable/12, 12.0-STABLE) 2019-08-20 17:51:32 UTC (releng/12.0, 12.0-RELEASE-p10) 2019-08-20 17:46:22 UTC (stable/11, 11.3-STABLE) 2019-08-20 17:51:32 UTC (releng/11.3, 11.3-RELEASE-p3) 2019-08-20 17:51:32 UTC (releng/11.2, 11.2-RELEASE-p14) CVE Name: CVE-2019-5603 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/>. Note: This issue is related to the previously disclosed SA-19:15.mqueuefs. It is another instance of the same bug and as such shares the same CVE. I. Background mqueuefs(5) implements POSIX message queue file system which can be used by processes as a communication mechanism. 'struct file' represents open files, directories, sockets and other entities. II. Problem Description System calls operating on file descriptors obtain a reference to relevant struct file which due to a programming error was not always put back, which in turn could be used to overflow the counter of affected struct file. III. Impact A local user can use this flaw to obtain access to files, directories, sockets, etc., opened by processes owned by other users. If obtained struct file represents a directory from outside of user's jail, it can be used to access files outside of the jail. If the user in question is a jailed root they can obtain root privileges on the host system. IV. Workaround No workaround is available. Note that the mqueuefs file system is not enabled by default. V. Solution Upgrade your vulnerable system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date, and reboot. Perform one of the following: 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 # shutdown -r +10min "Security update" 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. # fetch https://security.FreeBSD.org/patches/SA-19:24/mqueuefs.patch # fetch https://security.FreeBSD.org/patches/SA-19:24/mqueuefs.patch.asc # gpg --verify mqueuefs.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/r351255 releng/12.0/ r351261 stable/11/r351257 releng/11.3/ r351261 releng/11.2/ r351261 - - 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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5603> The latest revision of this advisory is available at https://security.FreeBSD.org/advisories/FreeBSD-SA-19:24.mqueuefs.asc> -BEGIN PGP SIGNATURE- iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAl1cPglfFIAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cIKGA/+Oh+ORvFs273SJwaYaf8LCJ21IJnzVxDp9vS6MSO79LmI6HeiqAy9apQs Ec4zOXvE5MzYfA+E9jyRa6c4h7OY7uSSym15wCjLLi+DWPJ1lcCPAv01JuAgSw9E
FreeBSD Security Advisory FreeBSD-SA-19:23.midi
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 = FreeBSD-SA-19:23.midi Security Advisory The FreeBSD Project Topic: kernel memory disclosure from /dev/midistat Category: core Module: sound Announced: 2019-08-20 Credits:Peter Holm, Mark Johnston Affects:All supported versions of FreeBSD. Corrected: 2019-08-20 17:53:16 UTC (stable/12, 12.0-STABLE) 2019-08-20 17:50:33 UTC (releng/12.0, 12.0-RELEASE-p10) 2019-08-20 17:54:18 UTC (stable/11, 11.3-STABLE) 2019-08-20 17:50:33 UTC (releng/11.3, 11.3-RELEASE-p3) 2019-08-20 17:50:33 UTC (releng/11.2, 11.2-RELEASE-p14) CVE Name: CVE-2019-5612 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 /dev/midistat is a device file which can be read to obtain a human-readable list of the available MIDI-capable devices in the system. II. Problem Description The kernel driver for /dev/midistat implements a handler for read(2). This handler is not thread-safe, and a multi-threaded program can exploit races in the handler to cause it to copy out kernel memory outside the boundaries of midistat's data buffer. III. Impact The races allow a program to read kernel memory within a 4GB window centered at midistat's data buffer. The buffer is allocated each time the device is opened, so an attacker is not limited to a static 4GB region of memory. On 32-bit platforms, an attempt to trigger the race may cause a page fault in kernel mode, leading to a panic. IV. Workaround No workaround is available. Custom kernels without "device sound" are not vulnerable. V. Solution Upgrade your vulnerable system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date, and reboot. 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 # shutdown -r +10min "Rebooting for security update" 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. # fetch https://security.FreeBSD.org/patches/SA-19:23/midi.patch # fetch https://security.FreeBSD.org/patches/SA-19:23/midi.patch.asc # gpg --verify midi.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/r351264 releng/12.0/ r351260 stable/11/r351265 releng/11.3/ r351260 releng/11.2/ r351260 - - 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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5612> The latest revision of this advisory is available at https://security.FreeBSD.org/advisories/FreeBSD-SA-19:23.midi.asc> -BEGIN PGP SIGNATURE- iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAl1cPgVfFIAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cItmQ/9HL5BIP/QUvfcBbhZmZAXa7O7V9Em4auumaUWEPnUaAR0vNKZqMvFXNeN v51/HOwCZte2fCgs8rxSH9ncQR+cUk/3nXO7PZ7pNPNfvuJoPlCV1rIuRrdwm14+ +pZIJpY65gmmXyh5Qa5cw41MEWuDcKluUg38zEROwBpX4h0J/ZuMSARn/s1jj/kJ hy2yzgPTz8gAzkNd8OtQm1CHdFnKWabuAHBlltj9qIA3OvJL+TpIFmzU5jA7wO1n w9GCcz73+IA1RZXu8vPsW9AEc/1LlUrNcyLmJ+bZjW9b7mY9dq+ackvULTzFV21u 5xW2FEX3EBr3kFSbWyIS9zuTX4InftoAr97CBxNMYa25/0En4Ri2rB3oH49BgqTb
FreeBSD Security Advisory FreeBSD-SA-19:22.mbuf
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 = FreeBSD-SA-19:22.mbuf Security Advisory The FreeBSD Project Topic: IPv6 remote Denial-of-Service Category: kernel Module: net Announced: 2019-08-20 Credits:Clement Lecigne Affects:All supported versions of FreeBSD. Corrected: 2019-08-10 00:01:25 UTC (stable/12, 12.0-STABLE) 2019-08-20 17:49:33 UTC (releng/12.0, 12.0-RELEASE-p10) 2019-08-10 00:02:45 UTC (stable/11, 11.3-STABLE) 2019-08-20 17:49:33 UTC (releng/11.3, 11.3-RELEASE-p3) 2019-08-20 17:49:33 UTC (releng/11.2, 11.2-RELEASE-p14) CVE Name: CVE-2019-5611 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 mbufs are a unit of memory management mostly used in the kernel for network packets and socket buffers. m_pulldown(9) is a function to arrange the data in a chain of mbufs. II. Problem Description Due do a missing check in the code of m_pulldown(9) data returned may not be contiguous as requested by the caller. III. Impact Extra checks in the IPv6 code catch the error condition and trigger a kernel panic leading to a remote DoS (denial-of-service) attack with certain Ethernet interfaces. At this point it is unknown if any other than the IPv6 code paths can trigger a similar condition. IV. Workaround For the currently known attack vector systems with IPv6 not enabled are not vulnerable. On systems with IPv6 active, IPv6 fragmentation may be disabled, or a firewall can be used to filter out packets with certain or excessive amounts of extension headers in a first fragment. These rules may be dependent on the operational needs of each site. V. Solution Upgrade your vulnerable system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date, and reboot. 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 # shutdown -r +10min "Rebooting for security update" 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. # fetch https://security.FreeBSD.org/patches/SA-19:22/mbuf.patch # fetch https://security.FreeBSD.org/patches/SA-19:22/mbuf.patch.asc # gpg --verify mbuf.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/r350828 releng/12.0/ r351259 stable/11/r350829 releng/11.3/ r351259 releng/11.2/ r351259 - - 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://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238787> https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5611> The latest revision of this advisory is available at https://security.FreeBSD.org/advisories/FreeBSD-SA-19:22.mbuf.asc> -BEGIN PGP SIGNATURE- iQKTBAEBCgB9FiEE/A6HiuWv54gCjWNV05eS9J6n5cIFAl1cPgFfFIAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEZD MEU4NzhBRTVBRkU3ODgwMjhENjM1NUQzOTc5MkY0OUVBN0U1QzIACgkQ05eS9J6n 5cK+4w/7BCGyLpeSCIaHMpKdZvSqKc6RptLyxPq1q6XO/5fUxQiBXuwxfZIUO45o VyQCsuVf0QDeT/HaMJAdTr450RlSs1ozyzEmd2iLfwqmpc8JRemihrzHkNMfny1U Y4ffN6zyrOLyFeyQcdbgHUKHwuAvGZFhR/PtPJfWDmULi0vW5PHBGjxOQmxKbbUr 6zcR+gKrm5E3vLW4vD2gvsB1RGyOzUBOaEeQU36LE1/W6hhgwtXAkZacEP+W4BiB
