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Red Hat Enterprise Linux 5 ELS RHSA-2018:3822-01 Important: Kernel Update

red hat
Calendar Grey December 12, 2018
Dist Redhat Esm H88
Crucial update from Red Hat tackles vulnerabilities and errors. Vital for preserving system integrity and safeguarding security.
An update for kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle 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):
* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824)
* kernel: Use-after-free in sys_mq_notify() (CVE-2017-11176)
* 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.
Red Hat would like to thank Mohamed Ghannam for reporting CVE-2017-8824.
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#1651481)

Topics%20covered

Topics Covered

security advisory Red Hat bug fix important kernel system stability use-after-free

References

https://access.redhat.com/security/cve/CVE-2017-8824 https://access.redhat.com/security/cve/CVE-2017-11176 https://access.redhat.com/security/cve/CVE-2017-15265 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Server (v. 5 ELS):
Source: kernel-2.6.18-436.el5.src.rpm
i386: kernel-2.6.18-436.el5.i686.rpm kernel-PAE-2.6.18-436.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-436.el5.i686.rpm kernel-PAE-devel-2.6.18-436.el5.i686.rpm kernel-debug-2.6.18-436.el5.i686.rpm kernel-debug-debuginfo-2.6.18-436.el5.i686.rpm kernel-debug-devel-2.6.18-436.el5.i686.rpm kernel-debuginfo-2.6.18-436.el5.i686.rpm kernel-debuginfo-common-2.6.18-436.el5.i686.rpm kernel-devel-2.6.18-436.el5.i686.rpm kernel-headers-2.6.18-436.el5.i386.rpm kernel-xen-2.6.18-436.el5.i686.rpm kernel-xen-debuginfo-2.6.18-436.el5.i686.rpm kernel-xen-devel-2.6.18-436.el5.i686.rpm
noarch: kernel-doc-2.6.18-436.el5.noarch.rpm
s390x: kernel-2.6.18-436.el5.s390x.rpm kernel-debug-2.6.18-436.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-436.el5.s390x.rpm kernel-debug-devel-2.6.18-436.el5.s390x.rpm kernel-debuginfo-2.6.18-436.el5.s390x.rpm kernel-debuginfo-common-2.6.18-436.el5.s390x.rpm kernel-devel-2.6.18-436.el5.s390x.rpm kernel-headers-2.6.18-436.el5.s390x.rpm kernel-kdump-2.6.18-436.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-436.el5.s390x.rpm kernel-kdump-devel-2.6.18-436.el5.s390x.rpm
x86_64: kernel-2.6.18-436.el5.x86_64.rpm kernel-debug-2.6.18-436.el5.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:3822-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3822
Issue date: 2018-12-12

Topic

An update for kernel is now available for Red Hat Enterprise Linux 5Extended Lifecycle 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 Red Hat bug fix important kernel system stability use-after-free

Relevant Releases Architectures

Red Hat Enterprise Linux Server (v. 5 ELS) - i386, noarch, s390x, x86_64

Bugs Fixed

1470659 - CVE-2017-11176 kernel: Use-after-free in sys_mq_notify()

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

1519591 - CVE-2017-8824 kernel: Use-after-free vulnerability in DCCP socket

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