SB2024060559 - Buffer overflow in Linux kernel mptcp
Published: June 5, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060559
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2021-47132)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the __mptcp_update_wmem(), __mptcp_clean_una_wakeup() and __mptcp_retrans() functions in net/mptcp/protocol.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.