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Red Hat Enterprise Linux 7 RHSA-2018:0395-01 Important Kernel Fix

red hat
Calendar Grey March 6, 2018
Scroller Redhat
Essential kernel security patches released for Red Hat Enterprise Linux 7, carrying a significant impact score, comprising various bug rectifications.
An update for kernel is now available for Red Hat Enterprise Linux 7

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.
These updated kernel packages include several security issues and numerous bug fixes, some of which you can see below. Space precludes documenting all of these bug fixes in this advisory. To see the complete list of bug fixes, users are directed to the related Knowledge Article: https://access.redhat.com/articles/3368501.
Security Fix(es):
* Kernel: KVM: MMU potential stack buffer overrun during page walks (CVE-2017-12188, Important)
* Kernel: KVM: debug exception via syscall emulation (CVE-2017-7518, Moderate)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory bug fix important kernel red hat enterprise

References

https://access.redhat.com/security/cve/CVE-2017-7518 https://access.redhat.com/security/cve/CVE-2017-12188 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/3368501

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-693.21.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-693.21.1.el7.noarch.rpm kernel-doc-3.10.0-693.21.1.el7.noarch.rpm
x86_64: kernel-3.10.0-693.21.1.el7.x86_64.rpm kernel-debug-3.10.0-693.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.x86_64.rpm kernel-devel-3.10.0-693.21.1.el7.x86_64.rpm kernel-headers-3.10.0-693.21.1.el7.x86_64.rpm kernel-tools-3.10.0-693.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.21.1.el7.x86_64.rpm perf-3.10.0-693.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm python-perf-3.10.0-693.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:0395-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0395
Issue date: 2018-03-06

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 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 bug fix important kernel red hat enterprise

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

1464473 - CVE-2017-7518 Kernel: KVM: debug exception via syscall emulation

1500380 - CVE-2017-12188 Kernel: KVM: MMU potential stack buffer overrun during page walks

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