Actively exploited · Published May 10, 2021 · Assigned by mitre
CVE-2021-28664
High 8.8 Exploited
In plain English
A high-severity out-of-bounds write in Mali Graphics Processing Unit (GPU) from Arm. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 5.5% (higher than 93% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Nov 17, 2021.
Official description
The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an unprivileged user can achieve read/write access to read-only pages. This affects Bifrost r0p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r8p0 through r30p0 before r31p0.
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://developer.arm.com/support/arm-security-updates
- https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver
- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28664 government-resource