SB2023120434 - Multiple vulnerabilities in Mali GPU Userspace and Kernel drivers

Description

This security bulletin contains information about 2 vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2023-32804)

CWE-ID: CWE-119 - Memory corruption

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:U/U:Clear

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary error in Mali GPU Userspace Driver. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

2) Use-after-free (CVE-ID: CVE-2023-3889)

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:U/U:Clear

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error caused by improper GPU memory processing operations. A local user can trigger a use-after-free error and execute arbitrary code on the system.

Remediation

Install update from vendor's website.

References

• https://chromereleases.googleblog.com/2023/08/stable-channel-update-for-chromeos_25.html
• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities