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CVE Record

CVE-2023-0615: A memory leak flaw and potential divide by zero and Integer overflow was found in the Linux kernel V4L2 and...

A memory leak flaw and potential divide by zero and Integer overflow was found in the Linux kernel V4L2 and vivid test code functionality. This issue occurs when a user triggers ioctls, such as VIDIOC_S_DV_TIMINGS ioctl. This could allow a local user to crash the system if vivid test code enabled.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue can let a local, low-privileged user crash an affected system when the V4L2 vivid test functionality is enabled. The reported impact is service availability, not data theft or privilege escalation.

Executive priority

Treat as a targeted availability risk, not a broad remote compromise issue. Patch through normal kernel maintenance, with faster action for shared servers, lab systems, or environments exposing video devices to untrusted users.

Technical view

CVE-2023-0615 is a CWE-20 flaw in Linux kernel V4L2 vivid test code involving memory leak, possible divide-by-zero, and integer overflow conditions. The source describes triggering through ioctls such as VIDIOC_S_DV_TIMINGS. CVSS 3.1 is 5.5: local, low complexity, low privilege, availability high.

Likely exposure

Exposure appears limited to Linux systems running the affected kernel 6.2-rc6, or related vendor builds, where vivid V4L2 test code is enabled and accessible to local users.

Exploitation context

The provided sources do not show active exploitation, and the CVE is not listed as KEV. Exploitation requires local access and enabled vivid test functionality. The documented outcome is a system crash or denial of service.

Researcher notes

Evidence is limited to the CVE description, CVSS data, affected kernel note, and Red Hat Bugzilla reference. No public source in the bundle identifies a specific upstream commit, patched version, or real-world exploitation.

Mitigation direction

  • Check vendor or distribution guidance for fixed kernel packages referencing CVE-2023-0615.
  • Prioritize updates on multi-user Linux systems where local shell access is common.
  • Disable or avoid loading vivid V4L2 test functionality where it is not required.
  • Restrict local user access to video device interfaces where operationally feasible.

Validation and detection

  • Inventory Linux systems for affected kernel versions, especially 6.2-rc6 lineage.
  • Check whether vivid V4L2 test code or module is enabled.
  • Review permissions on V4L2 video device nodes exposed to local users.
  • Confirm remediation status against vendor advisories for CVE-2023-0615.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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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cwe · low confidence lookup

CWE-20: Exact CWE lookup

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cve · low confidence lookup

CVE-2023-0615 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2023-0615Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aKernelLinux kernel 6.2-rc6Listed
Weakness

CWE details

CWE-20

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.