SB2025091959 - Use-after-free in Linux kernel firewire driver
Published: September 19, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091959
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-53432)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fwnet_finish_incoming_packet() function in drivers/firewire/net.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2ea70379e4f4efa95c9daa7f3f9bdd4d40aec927
- https://git.kernel.org/stable/c/3ff256751a2853e1ffaa36958ff933ccc98c6cb5
- https://git.kernel.org/stable/c/9040adc38cf6bfbb77034d558ac2c52f70d840ac
- https://git.kernel.org/stable/c/9860921ab4521252dc39bb21b9c936bd09a00982
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.12