[RHSA-2016:0064-01] Important: kernel security update

bugzilla at redhat.com bugzilla at redhat.com
Mon Jan 25 19:34:49 UTC 2016 

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2016:0064-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-0064.html
Issue date:        2016-01-25
CVE Names:         CVE-2016-0728 
=====================================================================

1. Summary:

Updated kernel 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 Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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 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 Client (v. 7):

Source:
kernel-3.10.0-327.4.5.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.4.5.el7.noarch.rpm
kernel-doc-3.10.0-327.4.5.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-headers-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.4.5.el7.x86_64.rpm
perf-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-327.4.5.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.4.5.el7.noarch.rpm
kernel-doc-3.10.0-327.4.5.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-headers-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.4.5.el7.x86_64.rpm
perf-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-327.4.5.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.4.5.el7.noarch.rpm
kernel-doc-3.10.0-327.4.5.el7.noarch.rpm

ppc64:
kernel-3.10.0-327.4.5.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debug-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-327.4.5.el7.ppc64.rpm
kernel-devel-3.10.0-327.4.5.el7.ppc64.rpm
kernel-headers-3.10.0-327.4.5.el7.ppc64.rpm
kernel-tools-3.10.0-327.4.5.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
kernel-tools-libs-3.10.0-327.4.5.el7.ppc64.rpm
perf-3.10.0-327.4.5.el7.ppc64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
python-perf-3.10.0-327.4.5.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debug-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-devel-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-headers-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-tools-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-327.4.5.el7.ppc64le.rpm
perf-3.10.0-327.4.5.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
python-perf-3.10.0-327.4.5.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm

s390x:
kernel-3.10.0-327.4.5.el7.s390x.rpm
kernel-debug-3.10.0-327.4.5.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.s390x.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.s390x.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-327.4.5.el7.s390x.rpm
kernel-devel-3.10.0-327.4.5.el7.s390x.rpm
kernel-headers-3.10.0-327.4.5.el7.s390x.rpm
kernel-kdump-3.10.0-327.4.5.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-327.4.5.el7.s390x.rpm
kernel-kdump-devel-3.10.0-327.4.5.el7.s390x.rpm
perf-3.10.0-327.4.5.el7.s390x.rpm
perf-debuginfo-3.10.0-327.4.5.el7.s390x.rpm
python-perf-3.10.0-327.4.5.el7.s390x.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.s390x.rpm

x86_64:
kernel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-headers-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.4.5.el7.x86_64.rpm
perf-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
kernel-debug-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-327.4.5.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-327.4.5.el7.ppc64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-327.4.5.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-327.4.5.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.4.5.el7.noarch.rpm
kernel-doc-3.10.0-327.4.5.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-devel-3.10.0-327.4.5.el7.x86_64.rpm
kernel-headers-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.4.5.el7.x86_64.rpm
perf-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.4.5.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.4.5.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.4.5.el7.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 at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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