SB2024120318 - Division by zero in Linux kernel mptcp
Published: December 3, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024120318
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) Division by zero (CVE-ID: CVE-2024-53123)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a division by zero error within the mptcp_recvmsg() and pr_debug() functions in net/mptcp/protocol.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/581302298524e9d77c4c44ff5156a6cd112227ae
- https://git.kernel.org/stable/c/955388e1d5d222c4101c596b536d41b91a8b212e
- https://git.kernel.org/stable/c/a66805c9b22caf4e42af7a616f6c6b83c90d1010
- https://git.kernel.org/stable/c/a749b23059b43a9b1787eb36c5d9d44150a34238
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.119