SB2023081419 - Privilege escalation in Linux kernel mt7921 wireless driver
Published: August 14, 2023
Security Bulletin ID
SB2023081419
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-2023-3317)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mt7921_check_offload_capability() function in drivers/net/wireless/mediatek/mt76/mt7921/init.c. A local user can trigger a use-after-free error and execute arbitrary code on the system.
Remediation
Install update from vendor's website.