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Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2017:2429-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2429
Issue date: 2017-08-08
CVE Names: CVE-2017-7895
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 6.7
Extended Update Support.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux HPC Node EUS (v. 6.7) - noarch, x86_64
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 6.7) - i386, noarch, ppc64, s390x,
x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.7) - i386, ppc64, s390x,
x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* The NFSv2 and NFSv3 server implementations in the Linux kernel through
4.10.13 lacked certain checks for the end of a buffer. A remote attacker
could trigger a pointer-arithmetic error or possibly cause other
unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and
fs/nfsd/nfsxdr.c. (CVE-2017-7895, Important)
Red Hat would like to thank Ari Kauppi for reporting this issue.
Bug Fix(es):
* If a VFC port became unmapped in the VIOS, it sometimes did not respond
with a CRQ init complete following the H_REG_CRQ() call. As a consequence,
scsi_block_requests were called until the init complete occurred. If not,
I/O requests were hung. The provided patch ensures the host action stays
set to IBMVFC_HOST_ACTION_TGT_DEL so that all rports are moved into devloss
state unless an init complete is received. (BZ#1460210)
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1446103 - CVE-2017-7895 kernel: NFSv3 server does not properly handle payload
bounds checking of WRITE requests
6. Package List:
Red Hat Enterprise Linux HPC Node EUS (v. 6.7):
Source:
kernel-2.6.32-573.45.1.el6.src.rpm
noarch:
kernel-abi-whitelists-2.6.32-573.45.1.el6.noarch.rpm
kernel-doc-2.6.32-573.45.1.el6.noarch.rpm
kernel-firmware-2.6.32-573.45.1.el6.noarch.rpm
x86_64:
kernel-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debug-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-573.45.1.el6.x86_64.rpm
kernel-devel-2.6.32-573.45.1.el6.x86_64.rpm
kernel-headers-2.6.32-573.45.1.el6.x86_64.rpm
perf-2.6.32-573.45.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7):
x86_64:
kernel-debug-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-573.45.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
python-perf-2.6.32-573.45.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.7):
Source:
kernel-2.6.32-573.45.1.el6.src.rpm
i386:
kernel-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-573.45.1.el6.i686.rpm
kernel-devel-2.6.32-573.45.1.el6.i686.rpm
kernel-headers-2.6.32-573.45.1.el6.i686.rpm
perf-2.6.32-573.45.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
noarch:
kernel-abi-whitelists-2.6.32-573.45.1.el6.noarch.rpm
kernel-doc-2.6.32-573.45.1.el6.noarch.rpm
kernel-firmware-2.6.32-573.45.1.el6.noarch.rpm
ppc64:
kernel-2.6.32-573.45.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debug-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-573.45.1.el6.ppc64.rpm
kernel-devel-2.6.32-573.45.1.el6.ppc64.rpm
kernel-headers-2.6.32-573.45.1.el6.ppc64.rpm
perf-2.6.32-573.45.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
s390x:
kernel-2.6.32-573.45.1.el6.s390x.rpm
kernel-debug-2.6.32-573.45.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-573.45.1.el6.s390x.rpm
kernel-devel-2.6.32-573.45.1.el6.s390x.rpm
kernel-headers-2.6.32-573.45.1.el6.s390x.rpm
kernel-kdump-2.6.32-573.45.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-573.45.1.el6.s390x.rpm
perf-2.6.32-573.45.1.el6.s390x.rpm
perf-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
x86_64:
kernel-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debug-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.i686.rpm
kernel-debug-devel-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-573.45.1.el6.x86_64.rpm
kernel-devel-2.6.32-573.45.1.el6.x86_64.rpm
kernel-headers-2.6.32-573.45.1.el6.x86_64.rpm
perf-2.6.32-573.45.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 6.7):
i386:
kernel-debug-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-573.45.1.el6.i686.rpm
perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
python-perf-2.6.32-573.45.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.i686.rpm
ppc64:
kernel-debug-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-573.45.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
python-perf-2.6.32-573.45.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.ppc64.rpm
s390x:
kernel-debug-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-573.45.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
perf-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
python-perf-2.6.32-573.45.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.s390x.rpm
x86_64:
kernel-debug-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-573.45.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
python-perf-2.6.32-573.45.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-573.45.1.el6.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2017-7895
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secal...@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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