CVE-2022-2652

Use of Externally-Controlled Format String in umlaeute/v4l2loopback

State
Published
Severity
7.3 High
Published
Aug 4, 2022
Updated
Aug 3, 2024
Reserved
Aug 4, 2022

Read the record on cve.org

Description

Depending on the way the format strings in the card label are crafted it's possible to leak kernel stack memory. There is also the possibility for DoS due to the v4l2loopback kernel module crashing when providing the card label on request (reproduce e.g. with many %s modifiers in a row).

Scores

CVSSScoreVectorSource
3.07.3 HighCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:L@huntrdev

Weaknesses

  • CWE-134 Use of Externally-Controlled Format String

Affected Products

ProductVersions
umlaeute/v4l2loopbackumlaeute
  • before 0.12.6Affected

References

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