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Exploited vulnerability · CISA KEV

Is CVE-2023-4211 exploited? Yes: in CISA KEV since 3 Oct 2023

Gociux · Arm Mali GPU Kernel Driver · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-4211, Arm Mali GPU Kernel Driver Use-After-Free Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Oct 2023, 2 days after it was published. It affects Arm Mali GPU Kernel Driver. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 3 Oct 2023
ransomwareNot knownno confirmed use
EPSSbelow top 10%lower predicted activity right now (it is still confirmed exploited)
severity5.5CVSS 3.1 · medium
US federal due24 Oct 2023BOD 22-01 deadline

What it is

Arm Mali GPU Kernel Driver contains a use-after-free vulnerability that allows a local, non-privileged user to make improper GPU memory processing operations to gain access to already freed memory.

VendorArm (9 exploited CVEs in KEV)
ProductMali GPU Kernel Driver
VulnerabilityArm Mali GPU Kernel Driver Use-After-Free Vulnerability
WeaknessCWE-416
Published1 Oct 2023
Added to KEV3 Oct 2023
Reported by (CNA)Arm

What to do

  1. Check whether you run it. Look for Mali GPU Kernel Driver in your asset inventory, including appliances and cloud images. Stack check lists every exploited Arm CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 1 Oct 2023.
  4. Get told next time. Email alerts when CISA adds a CVE for Arm.

Other exploited CVEs in Mali GPU Kernel Driver

References

Questions

Is CVE-2023-4211 being exploited?

Yes. CISA added CVE-2023-4211 to the Known Exploited Vulnerabilities catalog on 3 Oct 2023, which means there is reliable evidence of exploitation in the wild.

Is CVE-2023-4211 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2023-4211?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check Arm's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Mali GPU Kernel Driver and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in October 2023 · Arm scorecard · act-now radar.

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