#VU104472 Use-after-free in Linux kernel - CVE-2022-49093
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104472
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-2022-49093
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 skb_try_coalesce() function in net/core/skbuff.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/1effe8ca4e34c34cdd9318436a4232dcb582ebf4
- https://git.kernel.org/stable/c/72bb856d16e883437023ff2ff77d0c498018728a
- https://git.kernel.org/stable/c/ba965e8605aee5387cecaa28fcf7ee9f61779a49
- https://git.kernel.org/stable/c/c4fa19615806a9a7e518c295b39175aa47a685ac
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20