Home / vulnerabilities Red Hat Security Advisory 2016-0065-01
Posted on 26 January 2016
Source : packetstormsecurity.org Link
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Red Hat Security Advisory
Synopsis: Important: kernel-rt security update
Advisory ID: RHSA-2016:0065-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0065.html
Issue date: 2016-01-25
CVE Names: CVE-2016-0728
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1. Summary:
Updated kernel-rt packages that fix one security issue are now available
for Red Hat Enterprise Linux 7.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Realtime (v. 7) - noarch, x86_64
3. 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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1297475 - CVE-2016-0728 kernel: Possible use-after-free vulnerability in keyring facility
6. Package List:
Red Hat Enterprise Linux Realtime (v. 7):
Source:
kernel-rt-3.10.0-327.4.5.rt56.206.el7_2.src.rpm
noarch:
kernel-rt-doc-3.10.0-327.4.5.rt56.206.el7_2.noarch.rpm
x86_64:
kernel-rt-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-debug-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-debug-devel-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-debuginfo-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-devel-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-trace-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-327.4.5.rt56.206.el7_2.x86_64.rpm
kernel-rt-trace-devel-3.10.0-327.4.5.rt56.206.el7_2.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-2016-0728
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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