RHSA-2023:0839: 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: mm/mremap.c use-after-free vulnerability (CVE-2022-41222) kernel: nfsd buffer overflow by RPC message over TCP with garbage data (CVE-2022-43945) 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-2023:0839?
The severity of RHSA-2023:0839 is classified as important.
How do I fix RHSA-2023:0839?
To fix RHSA-2023:0839, ensure to apply the recommended kpatch-patch update relevant to your system version.
What vulnerabilities are addressed in RHSA-2023:0839?
RHSA-2023:0839 addresses a use-after-free vulnerability in mm/mremap.c and a buffer overflow in nfsd.
What systems are affected by RHSA-2023:0839?
RHSA-2023:0839 affects systems running specific versions of the kpatch-patch package.
Is there a specific version I need for RHSA-2023:0839?
You need to update to kpatch-patch version 4_18_0-425_10_1-1-1.el8_7 or 4_18_0-425_3_1-1-3.el8 depending on your system's architecture.