Use of Externally-Controlled Format String in umlaeute/v4l2loopback
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.3%
exploitation probability
0.3%top 73% of all CVEs
observed exploitation
nono source reports it
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).
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:L
Affected products
umlaeute · umlaeute/v4l2loopback