SB20240531121 - Use-after-free in Linux kernel bluetooth
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531121
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-2024-26886)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the bt_sock_recvmsg() and bt_sock_ioctl() functions in net/bluetooth/af_bluetooth.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/cb8adca52f306563d958a863bb0cbae9c184d1ae
- https://git.kernel.org/stable/c/64be3c6154886200708da0dfe259705fb992416c
- https://git.kernel.org/stable/c/817e8138ce86001b2fa5c63d6ede756e205a01f7
- https://git.kernel.org/stable/c/2c9e2df022ef8b9d7fac58a04a2ef4ed25288955
- https://git.kernel.org/stable/c/f7b94bdc1ec107c92262716b073b3e816d4784fb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.118
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.83
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2