Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.4epss 0.2%
exploitation probability
0.2%top 92% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
Input: focaltech - fix array out-of-bounds in focaltech_process_rel_packet
Make finger2 (and also finger1) unsigned, so that if the finger index in
the packet is 0 then subtracting 1 creates an array index which overflows
above the existing check for FOC_MAX_FINGERS, as the existing comment says
it should, instead of writing to state->fingers[-1].
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/063b4c6a6f3fc01bca085c442000c9c100fdbd93https://git.kernel.org/stable/c/1842e47126816e56d30c4f856f9854fd7831066chttps://git.kernel.org/stable/c/296736076b3fd078742651c719555a488624023ahttps://git.kernel.org/stable/c/6f6d5fe29efdf5001bc146fc292e6592cace93ebhttps://git.kernel.org/stable/c/81b07470cb2937ceb74b00be88151582a322433bhttps://git.kernel.org/stable/c/83c265bfc084d77e2171d4b67362150ab38c935bhttps://git.kernel.org/stable/c/bb502d79acb9ac1e0a77fa8bc7b7b4729140b11fhttps://git.kernel.org/stable/c/ca92c98b806839c108995b2bbff7061515bdfb53