SB2024090520 - Use-after-free in Linux kernel mptcp
Published: September 5, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024090520
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) Use-after-free (CVE-ID: CVE-2024-44974)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the lookup_subflow_by_daddr(), select_local_address(), select_signal_address(), __lookup_addr() and mptcp_pm_create_subflow_or_signal_addr() functions in net/mptcp/pm_netlink.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/9a9afbbc3fbfca4975eea4aa5b18556db5a0c0b8
- https://git.kernel.org/stable/c/0201d65d9806d287a00e0ba96f0321835631f63f
- https://git.kernel.org/stable/c/48e50dcbcbaaf713d82bf2da5c16aeced94ad07d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.226
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.167
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.109
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.48