CVE-2022-48938
CDC-NCM: avoid overflow in sanity checking
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
22 Aug 2024Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 · LinuxReferences
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