CVE-2022-48938

CVE-2022-48938: vulnerability in Linux

CDC-NCM: avoid overflow in sanity checking

Published · Updated

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: CDC-NCM: avoid overflow in sanity checking A broken device may give an extreme offset like 0xFFF0 and a reasonable length for a fragment. In the sanity check as formulated now, this will create an integer overflow, defeating the sanity check. Both offset and offset + len need to be checked in such a manner that no overflow can occur. And those quantities should be unsigned.
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/49909c9f8458cacb5b241106cba65aba5a6d8f4chttps://git.kernel.org/stable/c/69560efa001397ebb8dc1c3e6a3ce00302bb9f7fhttps://git.kernel.org/stable/c/7b737e47b87589031f0d4657f6d7b0b770474925https://git.kernel.org/stable/c/8d2b1a1ec9f559d30b724877da4ce592edc41fdchttps://git.kernel.org/stable/c/9957fbf34f52a4d8945d1bf39aae400ef9a11246https://git.kernel.org/stable/c/a612395c7631918e0e10ea48b9ce5ab4340f26a6