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Red Hat Enterprise Linux 6.5 RHSA-2018:1350-01 Important DoS Fix

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Calendar Grey May 8, 2018
Scroller Redhat
Kernel vulnerabilities and patch release for Red Hat Enterprise Linux 6.5 classified as Critical. Check out the details on this important update now.
An update for kernel is now available for Red Hat Enterprise Linux 6.5 Advanced Update Support

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):
* hw: cpu: speculative execution permission faults handling (CVE-2017-5754)
* Kernel: error in exception handling leads to DoS (CVE-2018-8897)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Google Project Zero for reporting CVE-2017-5754 and Nick Peterson (Everdox Tech LLC) and Andy Lutomirski for reporting CVE-2018-8897.
Bug Fix(es):
* The kernel build requirements have been updated to the GNU Compiler Collection (GCC) compiler version that has the support for Retpolines. The Retpolines mechanism is a software construct that leverages specific knowledge of the underlying hardware to mitigate the branch target injection, also known as Spectre variant 2 vulnerability described in CVE-2017-5715. (BZ#1554256)

Topics%20covered

Topics Covered

security advisory kernel update DoS Red Hat Enterprise Linux important security impact bug fixes

References

https://access.redhat.com/security/cve/CVE-2018-8897 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/pop_ss

Package List

Red Hat Enterprise Linux Server AUS (v. 6.5):
Source: kernel-2.6.32-431.89.2.el6.src.rpm
noarch: kernel-abi-whitelists-2.6.32-431.89.2.el6.noarch.rpm kernel-doc-2.6.32-431.89.2.el6.noarch.rpm kernel-firmware-2.6.32-431.89.2.el6.noarch.rpm
x86_64: kernel-2.6.32-431.89.2.el6.x86_64.rpm kernel-debug-2.6.32-431.89.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-431.89.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-431.89.2.el6.x86_64.rpm kernel-devel-2.6.32-431.89.2.el6.x86_64.rpm kernel-headers-2.6.32-431.89.2.el6.x86_64.rpm perf-2.6.32-431.89.2.el6.x86_64.rpm perf-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.5):
Source: kernel-2.6.32-431.89.2.el6.src.rpm
x86_64: kernel-debug-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-431.89.2.el6.x86_64.rpm perf-debuginfo-2.6.32-431.89.2.el6.x86_64.rpm python-perf-2.6.32-431.89.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-431.89.2.el6.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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:1350-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1350
Issue date: 2018-05-08

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.5Advanced Update Support.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 kernel update DoS Red Hat Enterprise Linux important security impact bug fixes

Relevant Releases Architectures

Red Hat Enterprise Linux Server AUS (v. 6.5) - noarch, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64

Bugs Fixed

1519781 - CVE-2017-5754 hw: cpu: speculative execution permission faults handling

1567074 - CVE-2018-8897 Kernel: error in exception handling leads to DoS

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