Issued:

2016-10-10

Updated:

2016-10-10

RHSA-2016:2047 - Important: kernel security update

Synopsis

Important: kernel security update

Type/Severity

Security Advisory Important

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.

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

Description

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

Security Fix(es):

• Linux kernel built with the 802.1Q/802.1ad VLAN(CONFIG_VLAN_8021Q) OR Virtual eXtensible Local Area Network(CONFIG_VXLAN) with Transparent Ethernet Bridging(TEB) GRO support, is vulnerable to a stack overflow issue. It could occur while receiving large packets via GRO path as an unlimited recursion could unfold in both VLAN and TEB modules leading to a stack corruption in the kernel. (CVE-2016-7039, Important)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

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

The system must be rebooted for this update to take effect.

Affected Products

Updated Packages

• kernel-headers-3.10.0-327.36.2.el7.ppc64le.rpm
• python-perf-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-devel-3.10.0-327.36.2.el7.x86_64.rpm
• python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-tools-libs-devel-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-tools-libs-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-debug-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-kdump-devel-3.10.0-327.36.2.el7.s390x.rpm
• kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-debug-devel-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-headers-3.10.0-327.36.2.el7.ppc64.rpm
• python-perf-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
• kernel-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-debug-devel-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-tools-libs-devel-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-bootwrapper-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
• kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-tools-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
• python-perf-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-headers-3.10.0-327.36.2.el7.s390x.rpm
• kernel-bootwrapper-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-tools-libs-3.10.0-327.36.2.el7.ppc64le.rpm
• perf-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
• kernel-kdump-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
• kernel-tools-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-tools-libs-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-tools-3.10.0-327.36.2.el7.ppc64le.rpm
• python-perf-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-tools-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-headers-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-devel-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-debuginfo-common-ppc64le-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-kdump-3.10.0-327.36.2.el7.s390x.rpm
• kernel-debug-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
• kernel-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-tools-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
• perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
• perf-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-3.10.0-327.36.2.el7.s390x.rpm
• kernel-debug-3.10.0-327.36.2.el7.s390x.rpm
• kernel-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-devel-3.10.0-327.36.2.el7.s390x.rpm
• perf-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-abi-whitelists-3.10.0-327.36.2.el7.noarch.rpm
• kernel-debug-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-debug-3.10.0-327.36.2.el7.x86_64.rpm
• perf-3.10.0-327.36.2.el7.s390x.rpm
• kernel-debug-devel-3.10.0-327.36.2.el7.s390x.rpm
• python-perf-3.10.0-327.36.2.el7.ppc64le.rpm
• python-perf-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-3.10.0-327.36.2.el7.src.rpm
• kernel-devel-3.10.0-327.36.2.el7.ppc64le.rpm
• perf-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
• python-perf-3.10.0-327.36.2.el7.s390x.rpm
• kernel-doc-3.10.0-327.36.2.el7.noarch.rpm
• kernel-debug-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-debug-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-debuginfo-common-s390x-3.10.0-327.36.2.el7.s390x.rpm
• perf-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
• kernel-debuginfo-common-ppc64-3.10.0-327.36.2.el7.ppc64.rpm
• kernel-debug-devel-3.10.0-327.36.2.el7.ppc64.rpm
• perf-3.10.0-327.36.2.el7.x86_64.rpm
• kernel-tools-libs-devel-3.10.0-327.36.2.el7.ppc64.rpm

Fixes

• This content is not included.BZ - 1375944

CVEs

• CVE-2016-7039
• CVE-2016-8666

References

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

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.