SB20250226240 - Use-after-free in Linux kernel video fbdev driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226240
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-2022-49419)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the vesafb_remove() function in drivers/video/fbdev/vesafb.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0fac5f8fb1bc2fc4f8714bf5e743c9cc3f547c63
- https://git.kernel.org/stable/c/acde4003efc16480375543638484d8f13f2e99a3
- https://git.kernel.org/stable/c/d260cad015945d1f4bb9b028a096f648506106a2
- https://git.kernel.org/stable/c/f605f5558ecc175ec70016a3c15f007cb6386531
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14