SB2023071146 - Privilege escalation in Linux kernel dm1105 PCI driver
Published: July 11, 2023
Security Bulletin ID
SB2023071146
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-2023-35824)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the dm1105_remove() function in drivers/media/pci/dm1105/dm1105.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.
References
- https://lore.kernel.org/all/49bb0b6a-e669-d4e7-d742-a19d2763e947@xs4all.nl/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5abda7a16698d4d1f47af1168d8fa2c640116b4a
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2
- https://lore.kernel.org/lkml/20230318081506.795147-1-zyytlz.wz@163.com/