Privilege Escalation and Denial of Service Vulnerability in Arm Mali GPU Driver
CVE-2021-28664
What is CVE-2021-28664?
The Arm Mali GPU kernel driver exhibits a significant vulnerability allowing unprivileged users to obtain read/write access to restricted pages. This flaw can result in privilege escalation or cause a denial of service through memory corruption. The affected versions include various releases of the Bifrost, Valhall, and Midgard architectures, which can have severe implications for system security.
CISA has reported CVE-2021-28664
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2021-28664 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: Apply updates per vendor instructions.