Vulnerability Details CVE-2022-2652
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 4.7%
CVSS Severity
CVSS v3 Score 7.3
References
- https://github.com/umlaeute/v4l2loopback/commit/e4cd225557486c420f6a34411f98c575effd43dd
- https://huntr.dev/bounties/1b055da5-7a9e-4409-99d7-030280d242d5
- https://github.com/umlaeute/v4l2loopback/commit/e4cd225557486c420f6a34411f98c575effd43dd
- https://huntr.dev/bounties/1b055da5-7a9e-4409-99d7-030280d242d5
Products affected by CVE-2022-2652
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.1
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.10.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.11.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.12.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.12.1
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.12.2
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.12.3
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.12.4
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.12.5
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.2
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.3
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.3.1
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.4.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.4.1
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.5.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.6.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.6.1
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.6.2
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.6.3
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.7.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.7.1
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.8.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.9.0
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cpe:2.3:o:v4l2loopback_project:v4l2loopback:0.9.1