SB2022122721 - Privilege escalation in Linux kernel xillybus
Published: December 27, 2022
Security Bulletin ID
SB2022122721
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Race condition (CVE-ID: CVE-2022-45888)
The vulnerability allows an attacker to escalate privileges on the system.
The vulnerability exists due to a race condition within the drivers/char/xillybus/xillyusb.c in Linux kernel. An attacker with physical access to the system can trigger a use-after-free error during physical removal of a USB device and execute arbitrary code.
Remediation
Install update from vendor's website.