SB2023033023 - Privilege escalation in ARM Mali GPU kernel drivers
Published: March 30, 2023 Updated: January 15, 2024
Security Bulletin ID
SB2023033023
CSH Severity
High
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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-38181)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a use-after-free error. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.
Note, this vulnerability is known to be exploited in targeted attacks spotted in November 2022.
Remediation
Install update from vendor's website.
References
- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
- https://github.blog/2023-01-23-pwning-the-all-google-phone-with-a-non-google-bug/
- https://securitylab.github.com/advisories/GHSL-2022-054_Arm_Mali/
- https://blog.google/threat-analysis-group/spyware-vendors-use-0-days-and-n-days-against-popular-platforms/