SB2024110855 - Reachable assertion in Linux kernel mptcp
Published: November 8, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024110855
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) Reachable assertion (CVE-ID: CVE-2024-50185)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to reachable assertion within the skb_is_fully_mapped() function in net/mptcp/subflow.c, within the mptcp_check_data_fin() and __mptcp_move_skbs_from_subflow() functions in net/mptcp/protocol.c, within the SNMP_MIB_ITEM() function in net/mptcp/mib.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/fde99e972b8f88cebe619241d7aa43d288ef666a
- https://git.kernel.org/stable/c/12c1676d598e3b8dd92a033b623b792cc2ea1ec5
- https://git.kernel.org/stable/c/35668f8ec84f6c944676e48ecc6bbc5fc8e6fe25
- https://git.kernel.org/stable/c/b8be15d1ae7ea4eedd547c3b3141f592fbddcd30
- https://git.kernel.org/stable/c/8bfd391bde685df7289b928ce8876a3583be4bfb
- https://git.kernel.org/stable/c/e32d262c89e2b22cb0640223f953b548617ed8a6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.228
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.169
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.113
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.57