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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

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

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

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

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

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

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/

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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
=====================================================================

1. Summary:

Updated kernel-rt packages that fix one security issue are now available
for Red Hat Enterprise Linux 7.

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.

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/

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