- Vulnerability/
- RHSA-2021:4644
15/11/2021
RHSA-2021:4644: Important: kpatch-patch security update
First published: Mon Nov 15 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: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type (CVE-2021-43267)</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 | Affected Version | How to fix |
|---|---|---|
| redhat/kpatch-patch | <4_18_0-305-1-8.el8 | 4_18_0-305-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305_10_2-1-5.el8_4 | 4_18_0-305_10_2-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-1-4.el8_4 | 4_18_0-305_12_1-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-1-3.el8_4 | 4_18_0-305_17_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-1-3.el8_4 | 4_18_0-305_19_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-1-2.el8_4 | 4_18_0-305_25_1-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-1-7.el8_4 | 4_18_0-305_3_1-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-1-6.el8_4 | 4_18_0-305_7_1-1-6.el8_4 |
| redhat/kpatch-patch | <4_18_0-305-1-8.el8 | 4_18_0-305-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305-debuginfo-1-8.el8 | 4_18_0-305-debuginfo-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305-debugsource-1-8.el8 | 4_18_0-305-debugsource-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305_10_2-1-5.el8_4 | 4_18_0-305_10_2-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debuginfo-1-5.el8_4 | 4_18_0-305_10_2-debuginfo-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debugsource-1-5.el8_4 | 4_18_0-305_10_2-debugsource-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-1-4.el8_4 | 4_18_0-305_12_1-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-debuginfo-1-4.el8_4 | 4_18_0-305_12_1-debuginfo-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-debugsource-1-4.el8_4 | 4_18_0-305_12_1-debugsource-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-1-3.el8_4 | 4_18_0-305_17_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-debuginfo-1-3.el8_4 | 4_18_0-305_17_1-debuginfo-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-debugsource-1-3.el8_4 | 4_18_0-305_17_1-debugsource-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-1-3.el8_4 | 4_18_0-305_19_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-debuginfo-1-3.el8_4 | 4_18_0-305_19_1-debuginfo-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-debugsource-1-3.el8_4 | 4_18_0-305_19_1-debugsource-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-1-2.el8_4 | 4_18_0-305_25_1-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-debuginfo-1-2.el8_4 | 4_18_0-305_25_1-debuginfo-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-debugsource-1-2.el8_4 | 4_18_0-305_25_1-debugsource-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-1-7.el8_4 | 4_18_0-305_3_1-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debuginfo-1-7.el8_4 | 4_18_0-305_3_1-debuginfo-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debugsource-1-7.el8_4 | 4_18_0-305_3_1-debugsource-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-1-6.el8_4 | 4_18_0-305_7_1-1-6.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debuginfo-1-6.el8_4 | 4_18_0-305_7_1-debuginfo-1-6.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debugsource-1-6.el8_4 | 4_18_0-305_7_1-debugsource-1-6.el8_4 |
| redhat/kpatch-patch | <4_18_0-305-1-8.el8 | 4_18_0-305-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305-debuginfo-1-8.el8 | 4_18_0-305-debuginfo-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305-debugsource-1-8.el8 | 4_18_0-305-debugsource-1-8.el8 |
| redhat/kpatch-patch | <4_18_0-305_10_2-1-5.el8_4 | 4_18_0-305_10_2-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debuginfo-1-5.el8_4 | 4_18_0-305_10_2-debuginfo-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_10_2-debugsource-1-5.el8_4 | 4_18_0-305_10_2-debugsource-1-5.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-1-4.el8_4 | 4_18_0-305_12_1-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-debuginfo-1-4.el8_4 | 4_18_0-305_12_1-debuginfo-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_12_1-debugsource-1-4.el8_4 | 4_18_0-305_12_1-debugsource-1-4.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-1-3.el8_4 | 4_18_0-305_17_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-debuginfo-1-3.el8_4 | 4_18_0-305_17_1-debuginfo-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_17_1-debugsource-1-3.el8_4 | 4_18_0-305_17_1-debugsource-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-1-3.el8_4 | 4_18_0-305_19_1-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-debuginfo-1-3.el8_4 | 4_18_0-305_19_1-debuginfo-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_19_1-debugsource-1-3.el8_4 | 4_18_0-305_19_1-debugsource-1-3.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-1-2.el8_4 | 4_18_0-305_25_1-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-debuginfo-1-2.el8_4 | 4_18_0-305_25_1-debuginfo-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_25_1-debugsource-1-2.el8_4 | 4_18_0-305_25_1-debugsource-1-2.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-1-7.el8_4 | 4_18_0-305_3_1-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debuginfo-1-7.el8_4 | 4_18_0-305_3_1-debuginfo-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_3_1-debugsource-1-7.el8_4 | 4_18_0-305_3_1-debugsource-1-7.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-1-6.el8_4 | 4_18_0-305_7_1-1-6.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debuginfo-1-6.el8_4 | 4_18_0-305_7_1-debuginfo-1-6.el8_4 |
| redhat/kpatch-patch | <4_18_0-305_7_1-debugsource-1-6.el8_4 | 4_18_0-305_7_1-debugsource-1-6.el8_4 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:4644?
The severity of RHSA-2021:4644 is classified as important.
How do I fix RHSA-2021:4644?
To fix RHSA-2021:4644, update the kpatch-patch package to the latest version specified in the advisory.
What does RHSA-2021:4644 address?
RHSA-2021:4644 addresses insufficient validation of user-supplied sizes for the MSG_CRYPTO message type (CVE-2021-43267).
What versions of kpatch-patch are affected by RHSA-2021:4644?
Versions of kpatch-patch prior to the specified remedial updates in RHSA-2021:4644 are affected.
Is there a known exploit for RHSA-2021:4644?
As of now, there are no known exploits specifically associated with RHSA-2021:4644.
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