Actively exploited in the wild
Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
Arm - Mali Graphics Processing Unit (GPU) · Listed in the CISA KEV since 2023-07-07. This indicates confirmed attacks in production environments.
Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
CVE-2021-29256
HighCVSS 8.8KEVSummary
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.
Risk Assessment
The risk includes full system compromise by a local user or disclosure of sensitive data, potentially leading to loss of system and data integrity.
Recommendation
Immediately update the Mali kernel driver to version r30p0 or later to mitigate the vulnerability.
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-2021-28664HighActively 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.
- CVE-2021-28663HighActively exploited
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.
Original NVD description (English source)
. The Arm Mali GPU kernel driver allows an unprivileged user to achieve access to freed memory, leading to information disclosure or root privilege escalation. This affects Bifrost r16p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r28p0 through r30p0.