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RedHat Enterprise Linux 7.3 RHSA-2019-4159-01 Important Kernel Fix

red hat
Calendar Grey December 10, 2019
Dist Redhat Esm H88
Crucial enhancements for Red Hat Enterprise Linux 7.3 have been released to address several kernel vulnerabilities. Ensure timely application.
An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update Support, and Red Hat Enterprise L...

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: Out-of-bounds heap access in xfrm (CVE-2017-7184)
* kernel: Exploitable memory corruption due to UFO to non-UFO path switch (CVE-2017-1000112)
* kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c (CVE-2018-1068)
* kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)
* kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405)
* kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559)
* Kernel: page cache side channel attacks (CVE-2019-5489)
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.
Bug Fix(es):
* IPv6 UDP inconsistent usage of UFO and HW checksums (BZ#1773816)
* UDPv6 packets badly fragmented when ESP in use on devices supporting UFO (BZ#1774503)

Topics%20covered

Topics Covered

security advisory bug fix memory corruption Red Hat Enterprise Linux important kernel security impact

References

https://access.redhat.com/security/cve/CVE-2017-7184 https://access.redhat.com/security/cve/CVE-2017-1000112 https://access.redhat.com/security/cve/CVE-2018-1068 https://access.redhat.com/security/cve/CVE-2018-9568 https://access.redhat.com/security/cve/CVE-2018-13405 https://access.redhat.com/security/cve/CVE-2018-18559 https://access.redhat.com/security/cve/CVE-2019-5489 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Server AUS (v. 7.3):
Source: kernel-3.10.0-514.71.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-514.71.1.el7.noarch.rpm kernel-doc-3.10.0-514.71.1.el7.noarch.rpm
x86_64: kernel-3.10.0-514.71.1.el7.x86_64.rpm kernel-debug-3.10.0-514.71.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-514.71.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-514.71.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-514.71.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-514.71.1.el7.x86_64.rpm kernel-devel-3.10.0-514.71.1.el7.x86_64.rpm kernel-headers-3.10.0-514.71.1.el7.x86_64.rpm kernel-tools-3.10.0-514.71.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-514.71.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-514.71.1.el7.x86_64.rpm perf-3.10.0-514.71.1.el7.x86_64.rpm perf-debuginfo-3.10.0-514.71.1.el7.x86_64.rpm python-perf-3.10.0-514.71.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-514.71.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.3):
Source: kernel-3.10.0-514.71.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-514.71.1.el7.noarch.rpm kernel-doc-3.10.0-514.71.1.el7.noarch.rpm
ppc64le: kernel-3.10.0-514.71.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-514.71.1.el7.ppc64le.rpm kernel-debug-3.10.0-514.71.1.el7.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:4159-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4159
Issue date: 2019-12-10

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.3Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.3 Update Services for SAPSolutions.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 memory corruption Red Hat Enterprise Linux important kernel security impact

Relevant Releases Architectures

Red Hat Enterprise Linux Server AUS (v. 7.3) - noarch, x86_64

Red Hat Enterprise Linux Server E4S (v. 7.3) - noarch, ppc64le, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64

Red Hat Enterprise Linux Server Optional E4S (v. 7.3) - ppc64le, x86_64

Red Hat Enterprise Linux Server Optional TUS (v. 7.3) - x86_64

Red Hat Enterprise Linux Server TUS (v. 7.3) - noarch, x86_64

Bugs Fixed

1435153 - CVE-2017-7184 kernel: Out-of-bounds heap access in xfrm

1479307 - CVE-2017-1000112 kernel: Exploitable memory corruption due to UFO to non-UFO path switch

1552048 - CVE-2018-1068 kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c

1599161 - CVE-2018-13405 kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members1641878 - CVE-2018-18559 kernel: Use-after-free due to race condition in AF_PACKET implementation

1655904 - CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning

1664110 - CVE-2019-5489 Kernel: page cache side channel attacks

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