RHSA-2021:3441: Moderate: kpatch-patch security update
Published Sep 7, 2021
·Updated
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.<br>Security Fix(es):<br><li> kernel: use-after-free in route4change() in net/sched/clsroute.c (CVE-2021-3715)</li> 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.
Affected Software
58 affected componentsFixes available
redhat/kpatch-patch<3_10_0-1160-1-9.el7
3_10_0-1160-1-9.el7
redhat/kpatch-patch<3_10_0-1160_11_1-1-8.el7
3_10_0-1160_11_1-1-8.el7
redhat/kpatch-patch<3_10_0-1160_15_2-1-8.el7
3_10_0-1160_15_2-1-8.el7
redhat/kpatch-patch<3_10_0-1160_21_1-1-6.el7
3_10_0-1160_21_1-1-6.el7
redhat/kpatch-patch<3_10_0-1160_24_1-1-4.el7
3_10_0-1160_24_1-1-4.el7
redhat/kpatch-patch<3_10_0-1160_25_1-1-4.el7
3_10_0-1160_25_1-1-4.el7
redhat/kpatch-patch<3_10_0-1160_2_1-1-9.el7
3_10_0-1160_2_1-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_2-1-9.el7
3_10_0-1160_2_2-1-9.el7
redhat/kpatch-patch<3_10_0-1160_31_1-1-3.el7
3_10_0-1160_31_1-1-3.el7
redhat/kpatch-patch<3_10_0-1160_36_2-1-2.el7
3_10_0-1160_36_2-1-2.el7
redhat/kpatch-patch<3_10_0-1160_41_1-1-1.el7
3_10_0-1160_41_1-1-1.el7
redhat/kpatch-patch<3_10_0-1160_6_1-1-9.el7
3_10_0-1160_6_1-1-9.el7
redhat/kpatch-patch<3_10_0-1160-1-9.el7
3_10_0-1160-1-9.el7
redhat/kpatch-patch<3_10_0-1160-debuginfo-1-9.el7
3_10_0-1160-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160_11_1-1-8.el7
3_10_0-1160_11_1-1-8.el7
redhat/kpatch-patch<3_10_0-1160_11_1-debuginfo-1-8.el7
3_10_0-1160_11_1-debuginfo-1-8.el7
redhat/kpatch-patch<3_10_0-1160_15_2-1-8.el7
3_10_0-1160_15_2-1-8.el7
redhat/kpatch-patch<3_10_0-1160_15_2-debuginfo-1-8.el7
3_10_0-1160_15_2-debuginfo-1-8.el7
redhat/kpatch-patch<3_10_0-1160_21_1-1-6.el7
3_10_0-1160_21_1-1-6.el7
redhat/kpatch-patch<3_10_0-1160_21_1-debuginfo-1-6.el7
3_10_0-1160_21_1-debuginfo-1-6.el7
redhat/kpatch-patch<3_10_0-1160_24_1-1-4.el7
3_10_0-1160_24_1-1-4.el7
redhat/kpatch-patch<3_10_0-1160_24_1-debuginfo-1-4.el7
3_10_0-1160_24_1-debuginfo-1-4.el7
redhat/kpatch-patch<3_10_0-1160_25_1-1-4.el7
3_10_0-1160_25_1-1-4.el7
redhat/kpatch-patch<3_10_0-1160_25_1-debuginfo-1-4.el7
3_10_0-1160_25_1-debuginfo-1-4.el7
redhat/kpatch-patch<3_10_0-1160_2_1-1-9.el7
3_10_0-1160_2_1-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_1-debuginfo-1-9.el7
3_10_0-1160_2_1-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_2-1-9.el7
3_10_0-1160_2_2-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_2-debuginfo-1-9.el7
3_10_0-1160_2_2-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160_31_1-1-3.el7
3_10_0-1160_31_1-1-3.el7
redhat/kpatch-patch<3_10_0-1160_31_1-debuginfo-1-3.el7
3_10_0-1160_31_1-debuginfo-1-3.el7
redhat/kpatch-patch<3_10_0-1160_36_2-1-2.el7
3_10_0-1160_36_2-1-2.el7
redhat/kpatch-patch<3_10_0-1160_36_2-debuginfo-1-2.el7
3_10_0-1160_36_2-debuginfo-1-2.el7
redhat/kpatch-patch<3_10_0-1160_41_1-debuginfo-1-1.el7
3_10_0-1160_41_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1160_6_1-1-9.el7
3_10_0-1160_6_1-1-9.el7
redhat/kpatch-patch<3_10_0-1160_6_1-debuginfo-1-9.el7
3_10_0-1160_6_1-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160-1-9.el7
3_10_0-1160-1-9.el7
redhat/kpatch-patch<3_10_0-1160-debuginfo-1-9.el7
3_10_0-1160-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160_11_1-1-8.el7
3_10_0-1160_11_1-1-8.el7
redhat/kpatch-patch<3_10_0-1160_11_1-debuginfo-1-8.el7
3_10_0-1160_11_1-debuginfo-1-8.el7
redhat/kpatch-patch<3_10_0-1160_15_2-1-8.el7
3_10_0-1160_15_2-1-8.el7
redhat/kpatch-patch<3_10_0-1160_15_2-debuginfo-1-8.el7
3_10_0-1160_15_2-debuginfo-1-8.el7
redhat/kpatch-patch<3_10_0-1160_21_1-1-6.el7
3_10_0-1160_21_1-1-6.el7
redhat/kpatch-patch<3_10_0-1160_21_1-debuginfo-1-6.el7
3_10_0-1160_21_1-debuginfo-1-6.el7
redhat/kpatch-patch<3_10_0-1160_24_1-1-4.el7
3_10_0-1160_24_1-1-4.el7
redhat/kpatch-patch<3_10_0-1160_24_1-debuginfo-1-4.el7
3_10_0-1160_24_1-debuginfo-1-4.el7
redhat/kpatch-patch<3_10_0-1160_25_1-1-4.el7
3_10_0-1160_25_1-1-4.el7
redhat/kpatch-patch<3_10_0-1160_25_1-debuginfo-1-4.el7
3_10_0-1160_25_1-debuginfo-1-4.el7
redhat/kpatch-patch<3_10_0-1160_2_1-1-9.el7
3_10_0-1160_2_1-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_1-debuginfo-1-9.el7
3_10_0-1160_2_1-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_2-1-9.el7
3_10_0-1160_2_2-1-9.el7
redhat/kpatch-patch<3_10_0-1160_2_2-debuginfo-1-9.el7
3_10_0-1160_2_2-debuginfo-1-9.el7
redhat/kpatch-patch<3_10_0-1160_31_1-1-3.el7
3_10_0-1160_31_1-1-3.el7
redhat/kpatch-patch<3_10_0-1160_31_1-debuginfo-1-3.el7
3_10_0-1160_31_1-debuginfo-1-3.el7
redhat/kpatch-patch<3_10_0-1160_36_2-1-2.el7
3_10_0-1160_36_2-1-2.el7
redhat/kpatch-patch<3_10_0-1160_36_2-debuginfo-1-2.el7
3_10_0-1160_36_2-debuginfo-1-2.el7
redhat/kpatch-patch<3_10_0-1160_41_1-debuginfo-1-1.el7
3_10_0-1160_41_1-debuginfo-1-1.el7
redhat/kpatch-patch<3_10_0-1160_6_1-1-9.el7
3_10_0-1160_6_1-1-9.el7
redhat/kpatch-patch<3_10_0-1160_6_1-debuginfo-1-9.el7
3_10_0-1160_6_1-debuginfo-1-9.el7
Remediation
Event History
Jul 2, 2024
Advisory Published
via Red Hat·01:35 AM
Frequently Asked Questions
1
What is the severity of RHSA-2021:3441?
The severity of RHSA-2021:3441 is classified as critical due to the potential for a use-after-free vulnerability in the kernel.
2
How do I fix RHSA-2021:3441?
To fix RHSA-2021:3441, you should update the kpatch-patch package to the remedied version specified in the advisory.
3
What does RHSA-2021:3441 address?
RHSA-2021:3441 addresses a use-after-free vulnerability in the route4_change function within the kernel.
4
Which systems are affected by RHSA-2021:3441?
RHSA-2021:3441 affects Red Hat Enterprise Linux systems running specific versions of the kpatch-patch package.
5
Is there a known CVE associated with RHSA-2021:3441?
Yes, RHSA-2021:3441 is associated with CVE-2021-3715, which details the vulnerability it addresses.