RedHat: RHSA-2016-0064:01 Important: kernel security update
Summary
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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2016-0728 https://access.redhat.com/security/updates/classification/#important
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/
Topic
Updated kernel packages that fix one security issue are now available forRed Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.
Topic
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
Bugs Fixed
1297475 - CVE-2016-0728 kernel: Possible use-after-free vulnerability in keyring facility