net: nfc: nci: Fix parameter validation for packet data
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.3epss 0.3%
exploitation probability
0.3%top 81% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: nci: Fix parameter validation for packet data
Since commit 9c328f54741b ("net: nfc: nci: Add parameter validation for
packet data") communication with nci nfc chips is not working any more.
The mentioned commit tries to fix access of uninitialized data, but
failed to understand that in some cases the data packet is of variable
length and can therefore not be compared to the maximum packet length
given by the sizeof(struct).
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/3b91160e9a91b5a2662875417dc42dc5b0bf03eahttps://git.kernel.org/stable/c/498fc5d0d650c77e87fcc73808d4f43240c21805https://git.kernel.org/stable/c/571dcbeb8e635182bb825ae758399831805693c2https://git.kernel.org/stable/c/a24a8a582da4426b2042e510a1080df84083b51dhttps://git.kernel.org/stable/c/ad058a4317db7fdb3f09caa6ed536d24a62ce6a0https://git.kernel.org/stable/c/c692db813a7e3b7c3c17d6e9a3ad2a018bf1142bhttps://git.kernel.org/stable/c/f5218426f765eee22e178df9c126d974792fb6a5