SB2022020225 - Fedora 35 update for kernel, kernel-headers, kernel-tools
Published: February 2, 2022
Security Bulletin ID
SB2022020225
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-24122)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error with in the kernel/ucount.c in Linux kernel, when unprivileged user namespaces are enabled. A local user can trigger a use-after-free error, because a ucounts object can outlive its namespace, and execute arbitrary ode with elevated privileges.
Remediation
Install update from vendor's website.