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Alerts This Week
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Red Hat Linux 6: RHSA-2017:0293-01 Important: Kernel Security Issue

red hat
Calendar Grey February 22, 2017
Scroller Redhat
Canonical announces a critical software enhancement for Ubuntu, detailing essential updates and restart guidelines for users operating on the latest LTS version.
An update for kernel is now available for Red Hat Enterprise Linux 6

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* A use-after-free flaw was found in the way the Linux kernel's Datagram Congestion Control Protocol (DCCP) implementation freed SKB (socket buffer) resources for a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO option is set on the socket. A local, unprivileged user could use this flaw to alter the kernel memory, allowing them to escalate their privileges on the system. (CVE-2017-6074, Important)

Topics%20covered

Topics Covered

security advisory security issue Red Hat important kernel system reboot use after free

References

https://access.redhat.com/security/cve/CVE-2017-6074 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: kernel-2.6.32-642.13.2.el6.src.rpm
i386: kernel-2.6.32-642.13.2.el6.i686.rpm kernel-debug-2.6.32-642.13.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-642.13.2.el6.i686.rpm kernel-debug-devel-2.6.32-642.13.2.el6.i686.rpm kernel-debuginfo-2.6.32-642.13.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-642.13.2.el6.i686.rpm kernel-devel-2.6.32-642.13.2.el6.i686.rpm kernel-headers-2.6.32-642.13.2.el6.i686.rpm perf-2.6.32-642.13.2.el6.i686.rpm perf-debuginfo-2.6.32-642.13.2.el6.i686.rpm python-perf-debuginfo-2.6.32-642.13.2.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-642.13.2.el6.noarch.rpm kernel-doc-2.6.32-642.13.2.el6.noarch.rpm kernel-firmware-2.6.32-642.13.2.el6.noarch.rpm
x86_64: kernel-2.6.32-642.13.2.el6.x86_64.rpm kernel-debug-2.6.32-642.13.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-642.13.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-642.13.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-642.13.2.el6.i686.rpm kernel-debug-devel-2.6.32-642.13.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-642.13.2.el6.i686.rpm kernel-debuginfo-2.6.32-642.13.2.el6.x86_64.rpm kernel-debuginfo-common-i686-2.6.32-642.13.2.el6.i686.rpm kernel-debuginfo-common-x86_64-2.6.32-642.13.2.el6.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2017:0293-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:0293.html
Issue date: 2017-02-22

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat important kernel system reboot use after free

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1423071 - CVE-2017-6074 kernel: use after free in dccp protocol

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