Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.5 Advanced Update Support and Red Hat Enterprise Linux 6.5 Telco 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.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged, local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system. (CVE-2016-5195, Important)
  

Red Hat would like to thank Phil Oester for reporting this issue.

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.

Affected Products

• Red Hat Enterprise Linux Server - AUS 6.5 x86_64
• Red Hat Enterprise Linux Server - TUS 6.5 x86_64

Fixes

• BZ - 1384344 - CVE-2016-5195 kernel: mm: privilege escalation via MAP_PRIVATE COW breakage

CVEs

• CVE-2016-5195

References

• https://access.redhat.com/security/updates/classification/#important

Red Hat Enterprise Linux Server - AUS 6.5

SRPM
kernel-2.6.32-431.75.1.el6.src.rpm	SHA-256: 4b35d0288f342f23483a93c1b090b4dff167dda0397e7f25dd2dd3df8f1bf1ab
x86_64
kernel-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 65e577365a051395455626be1a37715d2467cc29e17f368ef81cc27318cb16cf
kernel-abi-whitelists-2.6.32-431.75.1.el6.noarch.rpm	SHA-256: a391cd157d904b05523d2d2cb6dca9dc74bec1f41d02ded6567a63863ba0efb8
kernel-debug-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: a2909e078b23fd65e10797ba4a9ed609bad4e337fd969718602c2784b1510252
kernel-debug-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b7a8626051c58fd56330e91ee67bdf7bda89add1e2d42d331430e063d4cd2742
kernel-debug-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b7a8626051c58fd56330e91ee67bdf7bda89add1e2d42d331430e063d4cd2742
kernel-debug-devel-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b3571c0130c820149c6764eff2410e1c7c5a10af4533f566c9400bd262adf38f
kernel-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: d90696286d53f2d97050687049e5fe177f92e2e79fc8bd59e795abc73ef05310
kernel-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: d90696286d53f2d97050687049e5fe177f92e2e79fc8bd59e795abc73ef05310
kernel-debuginfo-common-x86_64-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 89e64bd5c858a3359819896c8591dab1103455c4989192faf4b0548f545a9df5
kernel-debuginfo-common-x86_64-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 89e64bd5c858a3359819896c8591dab1103455c4989192faf4b0548f545a9df5
kernel-devel-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 30718b41b1484603baaa11782391c9b344b94bb0feb2d97d5edc3fa3a2efbc96
kernel-doc-2.6.32-431.75.1.el6.noarch.rpm	SHA-256: b5d1e9b8a9484e45a84dd84cfd39b560f0bcad8254535f023299141aa626b2dd
kernel-firmware-2.6.32-431.75.1.el6.noarch.rpm	SHA-256: f9b21785ab2a0cde98e525d506a53d9880b126eacf618523bea182f52cbd3f95
kernel-headers-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 0f370792909fe23839ccba9bfa0f74350d9d2a29706a4642d0bf34ae9f479186
perf-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: f383b969169cf9f790f4b9e6d43660b51fcf50b9bd587852346f6b689dd5ff4b
perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: af2541645fb5c12dc57db5830afb882bf7bb0bc36b4a4e7e0ea1a2ea53ef4951
perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: af2541645fb5c12dc57db5830afb882bf7bb0bc36b4a4e7e0ea1a2ea53ef4951
python-perf-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: ba679b61fb2dfb3e41fa4d50a67065f984ca9dd0b765b5399178e3d83454706a
python-perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b4213d5e9900c0d146659f09a6c540988252e3a82d625d13b8814a6e46562c36
python-perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b4213d5e9900c0d146659f09a6c540988252e3a82d625d13b8814a6e46562c36

Red Hat Enterprise Linux Server - TUS 6.5

SRPM
kernel-2.6.32-431.75.1.el6.src.rpm	SHA-256: 4b35d0288f342f23483a93c1b090b4dff167dda0397e7f25dd2dd3df8f1bf1ab
x86_64
kernel-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 65e577365a051395455626be1a37715d2467cc29e17f368ef81cc27318cb16cf
kernel-abi-whitelists-2.6.32-431.75.1.el6.noarch.rpm	SHA-256: a391cd157d904b05523d2d2cb6dca9dc74bec1f41d02ded6567a63863ba0efb8
kernel-debug-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: a2909e078b23fd65e10797ba4a9ed609bad4e337fd969718602c2784b1510252
kernel-debug-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b7a8626051c58fd56330e91ee67bdf7bda89add1e2d42d331430e063d4cd2742
kernel-debug-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b7a8626051c58fd56330e91ee67bdf7bda89add1e2d42d331430e063d4cd2742
kernel-debug-devel-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b3571c0130c820149c6764eff2410e1c7c5a10af4533f566c9400bd262adf38f
kernel-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: d90696286d53f2d97050687049e5fe177f92e2e79fc8bd59e795abc73ef05310
kernel-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: d90696286d53f2d97050687049e5fe177f92e2e79fc8bd59e795abc73ef05310
kernel-debuginfo-common-x86_64-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 89e64bd5c858a3359819896c8591dab1103455c4989192faf4b0548f545a9df5
kernel-debuginfo-common-x86_64-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 89e64bd5c858a3359819896c8591dab1103455c4989192faf4b0548f545a9df5
kernel-devel-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 30718b41b1484603baaa11782391c9b344b94bb0feb2d97d5edc3fa3a2efbc96
kernel-doc-2.6.32-431.75.1.el6.noarch.rpm	SHA-256: b5d1e9b8a9484e45a84dd84cfd39b560f0bcad8254535f023299141aa626b2dd
kernel-firmware-2.6.32-431.75.1.el6.noarch.rpm	SHA-256: f9b21785ab2a0cde98e525d506a53d9880b126eacf618523bea182f52cbd3f95
kernel-headers-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: 0f370792909fe23839ccba9bfa0f74350d9d2a29706a4642d0bf34ae9f479186
perf-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: f383b969169cf9f790f4b9e6d43660b51fcf50b9bd587852346f6b689dd5ff4b
perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: af2541645fb5c12dc57db5830afb882bf7bb0bc36b4a4e7e0ea1a2ea53ef4951
perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: af2541645fb5c12dc57db5830afb882bf7bb0bc36b4a4e7e0ea1a2ea53ef4951
python-perf-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: ba679b61fb2dfb3e41fa4d50a67065f984ca9dd0b765b5399178e3d83454706a
python-perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b4213d5e9900c0d146659f09a6c540988252e3a82d625d13b8814a6e46562c36
python-perf-debuginfo-2.6.32-431.75.1.el6.x86_64.rpm	SHA-256: b4213d5e9900c0d146659f09a6c540988252e3a82d625d13b8814a6e46562c36