CVE-2023-0615

Local crash via unchecked vivid ioctl arithmetic

Published Feb 6, 2023 · Updated Mar 25, 2025

Improper input validation in Linux kernel 6.2-rc6 allows local users to crash systems through V4L2 vivid-driver ioctls. The vivid test driver divides by an unchecked user-supplied timing value, overflows 32-bit frame-buffer size arithmetic before a later memory copy, and leaks memory. The vivid driver must be built and exposed as /dev/videoX; distributions that omit its configuration are unaffected.

CVSS severity5.5
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Linux kernel 6.2-rc6 allows local users to crash systems through V4L2 vivid-driver ioctls. The vivid test driver divides by an unchecked user-supplied timing value, overflows 32-bit frame-buffer size arithmetic before a later memory copy, and leaks memory. The vivid driver must be built and exposed as /dev/videoX; distributions that omit its configuration are unaffected.

The record

CVE
CVE-2023-0615
Published
Feb 6, 2023
Updated
Mar 25, 2025
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-20, CWE-369, CWE-401, CWE-190, T1529
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Linux kernel 6.2-rc6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=Linux kernel 6.2-rc6

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-369Divide By Zero
CWE-401Missing Release of Memory after Effective Lifetime
CWE-190Integer Overflow or Wraparound
T1529System Shutdown/Reboot

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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