#VU104486 Use-after-free in Linux kernel - CVE-2022-49198
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104486
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-2022-49198
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 __mptcp_alloc_tx_skb() function in net/mptcp/protocol.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/3ef3905aa3b5b3e222ee6eb0210bfd999417a8cc
- https://git.kernel.org/stable/c/4d54181eba4b077fb74033a7186898ad4000a7a5
- https://git.kernel.org/stable/c/752add6f5ce5305e55d8bda4ac8d69be3a09f14d
- https://git.kernel.org/stable/c/af61a8f7603926c26158153d0a0755764d82657c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.64