SB2024062074 - Improper locking in Linux kernel mptcp
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062074
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-2021-47590)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __mptcp_push_pending() function in net/mptcp/protocol.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.