Synopsis

Important: kernel-rt security update

Type/Severity

Security Advisory: Important

Topic

Updated kernel-rt packages that fix one security issue are now available
for Red Hat Enterprise MRG 2.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

Description

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

• A use-after-free flaw was found in the way the Linux kernel's key
  management subsystem handled keyring object reference counting in certain
  error path of the join_session_keyring() function. A local, unprivileged
  user could use this flaw to escalate their privileges on the system.
  (CVE-2016-0728, Important)
  

Red Hat would like to thank the Perception Point research team for
reporting this issue.

All kernel-rt users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. The system must be
rebooted for this update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• MRG Realtime 2 x86_64

Fixes

• BZ - 1297475 - CVE-2016-0728 kernel: Possible use-after-free vulnerability in keyring facility

CVEs

• CVE-2013-7421
• CVE-2014-8171
• CVE-2014-9644
• CVE-2015-2925
• CVE-2016-0728

References

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

MRG Realtime 2

SRPM
kernel-rt-3.10.0-327.rt56.170.el6rt.src.rpm	SHA-256: 4e8dd0dfe7fb1c78747a60eefeceb27c96bec5925a6219584525d56756bc4213
x86_64
kernel-rt-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: d83251401478ef4f6a80ad8a6035add3660feb8c3f133722ebe404ddcdd4b986
kernel-rt-debug-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 169eb6e107b69054eb6b69626242d9b6ff75de6ef3dbd766c9954cfcc8ea951b
kernel-rt-debug-debuginfo-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 9b9de92586b830381c0cbbe49e52e328249e0fc42bd9a896643e8b6fb8b4dbea
kernel-rt-debug-devel-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 038164eabc1b53052eddd2825fba01e83718d3c76ff288e3233acfc01ccfd767
kernel-rt-debuginfo-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 6df3f89656b452115ead64fc494f0cbda5fc959a688a334b1cd09ba67ac0f40a
kernel-rt-debuginfo-common-x86_64-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: c1457765a70a20b2cd91c54f3d5a99f1942404a0cac35813f8419b876810cf96
kernel-rt-devel-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 6a2830cdbf165624b44bcb0401c4c26405548950a6e96723fadc300f1e499704
kernel-rt-doc-3.10.0-327.rt56.170.el6rt.noarch.rpm	SHA-256: 22738dd499b81719a0ea7c088bc82eac4c7b2becfde0abef1d394a49a73a4aa3
kernel-rt-firmware-3.10.0-327.rt56.170.el6rt.noarch.rpm	SHA-256: 6d101b947e481de36995255e7d1e197488649d01613a74bd277acb654b6e0505
kernel-rt-trace-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: dd472e21d659d794db55ffd94f0356356b540f4813c3f237ca50159885855f7a
kernel-rt-trace-debuginfo-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 5c1f8d2a273291a9b255fd53e574bd7f448490d3669d639a9b4779cb2b77e1b9
kernel-rt-trace-devel-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 2dab458a3e8fdfebf15235c1cbafa2fce069df2418c56b4a9a82b3e472eb9573
kernel-rt-vanilla-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 73140de3eef3f0ed5a86fa2d7ee95ccb09351f7dd0afb3dae261aa590e607bf2
kernel-rt-vanilla-debuginfo-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: 65e9f82c3bff7ba3f027ebe9655325683b1c7dca0083375c23b8a74d2d4cc644
kernel-rt-vanilla-devel-3.10.0-327.rt56.170.el6rt.x86_64.rpm	SHA-256: f2767ebac9d09bb7a40ec011af4f8e7a20c3c945da9b98ac7651e73bb4f3a33b