VulnerabilityAnalyzed
CVE-2021-28664
Arm Mali Graphics Processing Unit (GPU) Unspecified Vulnerability
KEVHIGH 8.8EPSS 5.41%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.41% probability · 92th percentile
- CISA KEV
- Listed 3 November 2021 · due 17 November 2021
- Weakness
- CWE-787
- Affected
- arm/bifrost gpu kernel driver · arm/midgard gpu kernel driver · arm/valhall gpu kernel driver
- Source
- cve@mitre.org
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-28664
References
- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20VulnerabilitiesVendor Advisory
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driverVendor Advisory
- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20VulnerabilitiesVendor Advisory
- https://developer.arm.com/support/arm-security-updatesVendor Advisory
- https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driverVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28664US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.