CVE-2021-28663

Arm Mali Graphics Processing Unit (GPU): Use-After-Free

As of , CVE-2021-28663 in Arm Mali Graphics Processing Unit (GPU) is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch soon.

Exploited
Yes: CISA listed it on 3 November 2021
US federal deadline
17 November 202114 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.12Higher than 96% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
EPSS when listed
Not availableCISA listed it before 4 February 2022, where the EPSS files we read begin.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
No vendor link in CISA's entry

What CISA says to do

Apply updates per vendor instructions.

CISA's required action

What the flaw is

Arm Mali Graphics Processing Unit (GPU) kernel driver contains a use-after-free vulnerability that may allow a non-privileged user to make improper operations on GPU memory to gain root privilege, and/or disclose information.

CISA's 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.

The CVE record's description, from mitre

CVE published
10 May 2021
Assigned by
mitre
CVSS
8.8 High (CVSS 3.1, from CISA-ADP)
CWE-416
Use After Free
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.

Mali Graphics Processing Unit (GPU): other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2022-38181Mali GPU Kernel Driver Use-After-FreeArm Mali Graphics Processing Unit (GPU)Patch soon0.14
CVE-2021-28664UnspecifiedArm Mali Graphics Processing Unit (GPU)Patch soon0.05
CVE-2021-29256Mali GPU Kernel Driver Use-After-FreeArm Mali Graphics Processing Unit (GPU)Patch soon0.03
CVE-2023-26083Mali GPU Kernel Driver Information DisclosureArm Mali Graphics Processing Unit (GPU)Patch soon0.01
CVE-2022-22706Mali GPU Kernel Driver UnspecifiedArm Mali Graphics Processing Unit (GPU)Patch soon0.01

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