Memory Access Vulnerability in Arm Mali GPU Kernel Driver
CVE-2021-29256
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What is CVE-2021-29256?
The Arm Mali GPU kernel driver is susceptible to a vulnerability that allows unprivileged users unauthorized access to freed memory. This flaw can potentially lead to information disclosure or escalation of privileges to root. Specifically, it impacts certain versions of the Bifrost, Valhall, and Midgard architectures, necessitating immediate attention to avoid exploitation. To mitigate risks, users are urged to upgrade to the latest releases.
CISA has reported CVE-2021-29256
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-2021-29256 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 or discontinue use of the product if updates are unavailable.