#VU104669 Improper locking in Linux kernel - CVE-2022-49372
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104669
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49372
CWE-ID: CWE-667
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 perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the tcp_rtx_synack() function in net/ipv4/tcp_output.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/0a0f7f84148445c9f02f226928803a870139d820
- https://git.kernel.org/stable/c/0a375c822497ed6ad6b5da0792a12a6f1af10c0b
- https://git.kernel.org/stable/c/3db889f883e65bbd3b1401279bfc1e9ed255c481
- https://git.kernel.org/stable/c/58bd38cbc961fd799842b7be8c5222310f04b908
- https://git.kernel.org/stable/c/88cd232146207ff1d41dededed5e77c0d4438113
- https://git.kernel.org/stable/c/bdc28a8fb43cc476e33b11519235adb816ce00e8
- https://git.kernel.org/stable/c/c348b0f8d035fc4bdc040796889beec7218bd1b8
- https://git.kernel.org/stable/c/d05c2fdf8e10528bb6751bd95243e862d5402a9b
- https://git.kernel.org/stable/c/d8e1bc6029acac796293310aacef7b7336f35b6a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4