RHSA-2021:4645: Important: kpatch-patch security update
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.Security Fix(es): kernel: Insufficient validation of user-supplied sizes for the MSGCRYPTO message type (CVE-2021-43267) 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
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:4645?
The severity of RHSA-2021:4645 is classified as important.
How do I fix RHSA-2021:4645?
To fix RHSA-2021:4645, update to the patched version of the kpatch-patch package available for your system.
What vulnerability is addressed in RHSA-2021:4645?
RHSA-2021:4645 addresses a vulnerability related to insufficient validation of user-supplied sizes for the MSG_CRYPTO message type (CVE-2021-43267).
Which systems are affected by RHSA-2021:4645?
RHSA-2021:4645 affects systems running kpatch-patch version 4_18_0-348-1-1.el8 or earlier.
Is there a risk of exploitation for RHSA-2021:4645?
Yes, the vulnerability in RHSA-2021:4645 can potentially be exploited if not patched.