SB20250226487 - Improper locking in Linux kernel ipv4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226487
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2022-49372)
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.
References
- 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