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Red Hat 6 ELS RHSA-2021-2735-01 important: kernel integer overflow

red hat
Calendar Grey July 20, 2021
Dist Redhat Esm H88
Crucial kernel patch rolls out for Red Hat Enterprise Linux 6, tackling severe problems such as integer overflow security flaws.
An update for kernel is now available for Red Hat Enterprise Linux 6 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: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)
* kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)
* kernel: Use after free via PI futex state (CVE-2021-3347)
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 critical issue Red Hat kernel integer overflow

References

https://access.redhat.com/security/cve/CVE-2020-12362 https://access.redhat.com/security/cve/CVE-2021-3347 https://access.redhat.com/security/cve/CVE-2021-33909 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-006

Package List

Red Hat Enterprise Linux Server (v. 6 ELS):
Source: kernel-2.6.32-754.41.2.el6.src.rpm
i386: kernel-2.6.32-754.41.2.el6.i686.rpm kernel-debug-2.6.32-754.41.2.el6.i686.rpm kernel-debug-debuginfo-2.6.32-754.41.2.el6.i686.rpm kernel-debug-devel-2.6.32-754.41.2.el6.i686.rpm kernel-debuginfo-2.6.32-754.41.2.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-754.41.2.el6.i686.rpm kernel-devel-2.6.32-754.41.2.el6.i686.rpm kernel-headers-2.6.32-754.41.2.el6.i686.rpm perf-2.6.32-754.41.2.el6.i686.rpm perf-debuginfo-2.6.32-754.41.2.el6.i686.rpm python-perf-debuginfo-2.6.32-754.41.2.el6.i686.rpm
noarch: kernel-abi-whitelists-2.6.32-754.41.2.el6.noarch.rpm kernel-doc-2.6.32-754.41.2.el6.noarch.rpm kernel-firmware-2.6.32-754.41.2.el6.noarch.rpm
s390x: kernel-2.6.32-754.41.2.el6.s390x.rpm kernel-debug-2.6.32-754.41.2.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-754.41.2.el6.s390x.rpm kernel-debug-devel-2.6.32-754.41.2.el6.s390x.rpm kernel-debuginfo-2.6.32-754.41.2.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-754.41.2.el6.s390x.rpm kernel-devel-2.6.32-754.41.2.el6.s390x.rpm kernel-headers-2.6.32-754.41.2.el6.s390x.rpm kernel-kdump-2.6.32-754.41.2.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-754.41.2.el6.s390x.rpm kernel-kdump-devel-2.6.32-754.41.2.el6.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2735-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2735
Issue date: 2021-07-20

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6Extended 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 critical issue Red Hat kernel integer overflow

Relevant Releases Architectures

Red Hat Enterprise Linux Server (v. 6 ELS) - i386, noarch, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6 ELS) - i386, s390x, x86_64

Bugs Fixed

1922249 - CVE-2021-3347 kernel: Use after free via PI futex state

1930246 - CVE-2020-12362 kernel: Integer overflow in Intel(R) Graphics Drivers1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer

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