Actively exploited in the wild
Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability
Arm - Mali Graphics Processing Unit (GPU) · Listed in the CISA KEV since 2021-11-03. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions.
CVE-2021-28663
HighCVSS 8.8KEVSummary
The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. Affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0.
Risk Assessment
The risk includes privilege escalation or leakage of sensitive data, potentially compromising system and data security.
Recommendation
Update the Mali kernel driver to version r29p0 (for Bifrost/Valhall) or later, and for Midgard to r30p0 or later.
Other vulnerabilities in Arm Mali GPU kernel driver
See all- CVE-2022-38181HighActively exploited
The Arm Mali GPU kernel driver mishandles GPU memory operations, allowing unprivileged users to access freed memory (use-after-free). This affects Bifrost, Valhall, and Midgard architectures within specific version ranges.
- CVE-2022-22706HighActively exploited
The Arm Mali GPU Kernel Driver allows a non-privileged user to achieve write access to read-only memory pages. This affects Midgard r26p0 through r31p0, Bifrost r0p0 through r35p0, and Valhall r19p0 through r35p0.
- CVE-2021-29256HighActively exploited
The Arm Mali GPU kernel driver allows an unprivileged user to access freed memory, leading to information disclosure or root privilege escalation. Affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.
- CVE-2021-28664HighActively exploited
The Arm Mali GPU kernel driver allows privilege escalation or denial of service (memory corruption) because an unprivileged user can achieve read/write access to read-only pages. Affects Bifrost r0p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r8p0 through r30p0 before r31p0.
Original NVD description (English source)
The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0.