Security readout for executives and security teams
Plain-English summary
A local user on an affected Linux system may trigger an out-of-bounds kernel access through V3D graphics performance-query functionality. Successful exploitation could compromise system confidentiality, integrity, and availability. The issue is not described as remotely exploitable and requires local, low-privileged access.
Executive priority
Treat this as a high-priority local privilege-boundary risk on systems using V3D, especially shared or multi-user hosts. It is less urgent for systems without V3D or untrusted local access. Patch through supported distribution channels after confirming applicability; no emergency internet-facing response is indicated by the supplied evidence.
Technical view
The V3D DRM performance-query copy and reset extensions failed to ensure a userspace-supplied perfmon count fit the kernel’s internal ID storage. An excessive count could cause out-of-bounds access. The cited kernel commits add the missing bounds check. The supplied CVSS 3.1 score is 7.8 with local attack vector and low privileges required.
Likely exposure
Exposure is most likely on Linux systems using the V3D DRM driver where untrusted local users can access the relevant graphics device functionality. The supplied affected-version data includes kernels from 6.8 through entries covering 6.10.4 and 6.11, but its exact range is ambiguous. Vendor-specific kernel status requires confirmation.
Exploitation context
The supplied bundle contains no evidence of active exploitation, and its KEV flag is false. Exploitation requires local access, low privileges, and no user interaction according to the CVSS vector. The sources do not establish practical exploit reliability or observed attacks.
Researcher notes
The key defect is insufficient validation of the userspace perfmon count before copying IDs into fixed internal storage during copy and reset extensions. The bundle identifies upstream stable fixes but provides ambiguous affected-version records and no CWE, exploit proof, attack telemetry, or distribution-specific backport status. Avoid inferring exposure solely from kernel version.
Mitigation direction
- Apply a vendor-supported kernel update incorporating the cited bounds-check fix.
- Confirm exact affected and fixed versions through your Linux distribution’s security guidance.
- Prioritize multi-user systems where untrusted users can access V3D graphics devices.
- If updating is delayed, review vendor-recommended restrictions for affected graphics-device access.
Validation and detection
- Inventory deployed kernel versions and identify systems loading or using the V3D DRM driver.
- Check distribution advisories for backported fixes, not only upstream version numbers.
- Verify the installed kernel incorporates one of the cited stable commits or an equivalent backport.
- Confirm untrusted local accounts cannot unnecessarily access affected graphics-device interfaces.
- After updating, retest graphics workloads and confirm systems booted into the patched kernel.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2024-42264 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/73ad583bd4938bf37d2709fc36901eb6f22f2722CVE reference, Linux
- https://git.kernel.org/stable/c/6ce9efd12ae81cf46bf44eb0348594558dfbb9d2CVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.