The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading t
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The Arm Mali GPU kernel driver, used on devices with Arm Mali graphics chips, is affected by this flaw. An attacker could exploit it to gain elevated privileges on the system or to read sensitive information from memory.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- n/a n/a
Version range not reported
References 3
GitHub · lntrx/CVE-2021-28663
Questions about CVE-2021-28663
What does this mean?
A design flaw in the Mali GPU Android kernel driver lets a proof-of-concept gain read-only CPU access to GPU memory pages, which leaks information. The flaw is in how GPU memory operations are handled.Source: github.com
Am I affected, and how do I check?
The checked facts name only the Mali GPU Android kernel driver and give no version ranges. To check a device, look up its Mali kernel driver version and compare it with the vendor's advisory.Source: github.com
What should I do about it?
The checked facts name no fixed driver version, so the upgrade target is not known from these facts. Check the Arm security bulletin for the patched driver version and update to it.Source: github.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2021-11-03, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts list no workaround. Check the vendor's advisory for interim guidance until a fixed driver is installed.Source: github.com