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CVE-2023-4211

Arm Mali GPU Kernel Driver Use-After-Free

5.5 MEDIUMActively exploited (CISA KEV)EPSS 1.10%
  1. Published1 Oct 2023
  2. Added to CISA KEV3 Oct 2023
  3. Remediation due24 Oct 2023
Actively exploited (CISA KEV)

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.

Added to KEV: 3 Oct 2023Federal remediation due: 24 Oct 2023

Description

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

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

Arm 5th Gen Gpu Architecture Kernel Driver≥ r41p0 < r43p0
Arm Bifrost Gpu Kernel Driver≥ r0p0 < r43p0
Arm Midgard Gpu Kernel Driver≥ r12p0 ≤ r32p0
Arm Valhall Gpu Kernel Driver≥ r19p0 < r43p0

Remediation

Fixed in
Arm 5th Gen Gpu Architecture Kernel Driver≥ r43p0
Arm Bifrost Gpu Kernel Driver≥ r43p0
Arm Valhall Gpu Kernel Driver≥ r43p0

References

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Frequently asked

Is CVE-2023-4211 being actively exploited?

Yes. CVE-2023-4211 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Oct 2023.

How severe is CVE-2023-4211?

CVE-2023-4211 has a CVSS 3.1 base score of 5.5, rated medium. EPSS estimates a 1.10% probability of exploitation.

Which products are affected by CVE-2023-4211?

Affected products include Arm 5th Gen Gpu Architecture Kernel Driver, Arm Bifrost Gpu Kernel Driver, Arm Midgard Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.

How do I fix CVE-2023-4211?

Upgrade affected software to a fixed version, for example Arm 5th Gen Gpu Architecture Kernel Driver r43p0, Arm Bifrost Gpu Kernel Driver r43p0, Arm Valhall Gpu Kernel Driver r43p0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-4211 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.