SB2023021640 - Privilege escalation in Linux kernel gadgetfs
Published: February 16, 2023
Security Bulletin ID
SB2023021640
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-4382)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the gadgetfs Linux driver. An attacker with physical access to the system can trigger a use-after-free by manipulating the external device with gadgetfs and execute arbitrary code.
Remediation
Install update from vendor's website.