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Known exploited vulnerability

CVE-2023-4211

mediumCVSS 3.1 5.5In CISA KEVEPSS 0.98%Published · Arm Ltd

The short answer

CVE-2023-4211 affects Arm Ltd Midgard GPU Kernel Driver and is rated medium (CVSS 5.5). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-10-03: attackers are using it, so patch it first.

What it is

A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.

Weakness: CWE-416.

Severity

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploited (CISA KEV)

Yes, since Oct 3, 2023

Federal due date Oct 24, 2023

EPSS, next 30 days

0.98%

Higher than 62% of scored CVEs

How it can be exploited

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

What CISA says to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected products

Midgard GPU Kernel Driver, Bifrost GPU Kernel Driver, Valhall GPU Kernel Driver, Arm 5th Gen GPU Architecture Kernel Driver. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2023-4211 being exploited?

Yes. CISA added CVE-2023-4211 to its Known Exploited Vulnerabilities catalog on 2023-10-03, with a federal remediation due date of 2023-10-24.

How do I fix CVE-2023-4211?

CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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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