High severity · published May 10, 2021
CVE-2021-28663
Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerability
In wildKEV
8.8
CVSS
12.1%
EPSS
Yes
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)12.1% · higher than 96% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueNov 17, 2021
Ransomware campaign useNot known
Affected products
Which versions
BG
Bifrost Gpu Kernel Driver · Arm
r0p0 before r29p0 · source: NVD, CISA
MG
Midgard Gpu Kernel Driver · Arm
r4p0 before r31p0 · source: NVD, CISA
VG
Valhall Gpu Kernel Driver · Arm
r19p0 before r29p0 · source: NVD, CISA
MG
Mali Graphics Processing Unit (GPU) · Arm
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28663
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28663
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
developer.arm.com
https://developer.arm.com/support/arm-security-updates
developer.arm.com
https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver
github.com
https://github.com/lntrx/CVE-2021-28663
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