SB2022103011 - Privilege escalation in Linux kernel PCMCIA
Published: October 30, 2022 Updated: June 14, 2023
Security Bulletin ID
SB2022103011
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-2022-44032)
The vulnerability allows an attacker to escalate privileges on the system.
The vulnerability exists due to a race condition in drivers/char/pcmcia/cm4000_cs.c in Linux kernel. An attacker with physical access to device can remove the PCMCIA device while calling open() to trigger a use-after-free error and execute arbitrary code on the system.
Remediation
Install update from vendor's website.