Known exploited vulnerability
CVE-2021-28664
The short answer
CVE-2021-28664 affects n/a n/a and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2021-11-03: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-787.
Severity
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Nov 3, 2021
Federal due date Nov 17, 2021
EPSS, next 30 days
5.5%
Higher than 93% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities Vendor Advisory
- developer.arm.com/support/arm-security-updates Vendor Advisory
- developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver Vendor Advisory
- developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities Vendor Advisory
- developer.arm.com/support/arm-security-updates Vendor Advisory
- developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28664 US Government Resource
Questions
Is CVE-2021-28664 being exploited?
Yes. CISA added CVE-2021-28664 to its Known Exploited Vulnerabilities catalog on 2021-11-03, with a federal remediation due date of 2021-11-17.
How do I fix CVE-2021-28664?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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