Vulnerabilities > CVE-2022-2652 - Unspecified vulnerability in V4L2Loopback Project V4L2Loopback
Attack vector
LOCAL Attack complexity
LOW Privileges required
HIGH Confidentiality impact
HIGH Integrity impact
NONE Availability impact
HIGH Summary
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).
Vulnerable Configurations
References
- https://github.com/umlaeute/v4l2loopback/commit/e4cd225557486c420f6a34411f98c575effd43dd
- https://github.com/umlaeute/v4l2loopback/commit/e4cd225557486c420f6a34411f98c575effd43dd
- https://huntr.dev/bounties/1b055da5-7a9e-4409-99d7-030280d242d5
- https://huntr.dev/bounties/1b055da5-7a9e-4409-99d7-030280d242d5