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Red Hat 5.9 RHSA-2018:3823-01 Moderate: Kernel Use-After-Free

red hat
Calendar Grey December 12, 2018
Dist Redhat Esm H88
Red Hat has released a security advisory concerning kernel updates that rectify a critical use-after-free vulnerability. Discover additional details.
An update for kernel is now available for Red Hat Enterprise Linux 5.9 Long Life

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):
* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265)
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.
Bug Fix(es):
* Previously, on certain Intel 64 systems, the microcode contained a new model-specific register (MSR) that was not present in the older microcode running on CPUs that had not been updated yet. As a consequence, the system crashed due to a general protection fault on a CPU running the older microcode. This update fixes the bug by having the kernel use MSR access routines that handle the general protection fault. As a result, the system no longer crashes in the described scenario. (BZ#1652467)

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix server kernel use-after-free

References

https://access.redhat.com/security/cve/CVE-2017-15265 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Long Life (v. 5.9 server):
Source: kernel-2.6.18-348.42.1.el5.src.rpm
i386: kernel-2.6.18-348.42.1.el5.i686.rpm kernel-PAE-2.6.18-348.42.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-PAE-devel-2.6.18-348.42.1.el5.i686.rpm kernel-debug-2.6.18-348.42.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-debug-devel-2.6.18-348.42.1.el5.i686.rpm kernel-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.42.1.el5.i686.rpm kernel-devel-2.6.18-348.42.1.el5.i686.rpm kernel-headers-2.6.18-348.42.1.el5.i386.rpm kernel-xen-2.6.18-348.42.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-xen-devel-2.6.18-348.42.1.el5.i686.rpm
noarch: kernel-doc-2.6.18-348.42.1.el5.noarch.rpm
x86_64: kernel-2.6.18-348.42.1.el5.x86_64.rpm kernel-debug-2.6.18-348.42.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.42.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.42.1.el5.x86_64.rpm kernel-devel-2.6.18-348.42.1.el5.x86_64.rpm kernel-headers-2.6.18-348.42.1.el5.x86_64.rpm kernel-xen-2.6.18-348.42.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2018:3823-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3823
Issue date: 2018-12-12

Topic

An update for kernel is now available for Red Hat Enterprise Linux 5.9 LongLife.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix server kernel use-after-free

Relevant Releases Architectures

Red Hat Enterprise Linux Long Life (v. 5.9 server) - i386, noarch, x86_64

Bugs Fixed

1501878 - CVE-2017-15265 kernel: Use-after-free in snd_seq_ioctl_create_port()

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