SB2024062724 - Denial of service in Linux kernel bpf
Published: June 27, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062724
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2024-35894)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper access restrictions in mptcp_set_rcvlowat() function in net/mptcp/sockopt.c, which allow bpf accessing mptcp-level proto_ops from a tcp subflow scope. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.