#VU104423 Use-after-free in Linux kernel - CVE-2022-49419
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104423
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49419
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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