CVE-2022-48938: CDC-NCM: avoid overflow in sanity checking
First published: Thu Aug 22 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <5.10.103 | |
| Linux Linux kernel | >=5.11<5.15.26 | |
| Linux Linux kernel | >=5.16<5.16.12 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.9-1 6.11.10-1 |
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Reference Links
- https://git.kernel.org/stable/c/49909c9f8458cacb5b241106cba65aba5a6d8f4c
- https://git.kernel.org/stable/c/69560efa001397ebb8dc1c3e6a3ce00302bb9f7f
- https://git.kernel.org/stable/c/7b737e47b87589031f0d4657f6d7b0b770474925
- https://git.kernel.org/stable/c/8d2b1a1ec9f559d30b724877da4ce592edc41fdc
- https://git.kernel.org/stable/c/9957fbf34f52a4d8945d1bf39aae400ef9a11246
- https://git.kernel.org/stable/c/a612395c7631918e0e10ea48b9ce5ab4340f26a6
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-48938
- https://nvd.nist.gov/vuln/detail/CVE-2022-48938
- https://launchpad.net/bugs/cve/CVE-2022-48938
- https://security-tracker.debian.org/tracker/CVE-2022-48938
- https://ubuntu.com/security/CVE-2022-48938
- https://git.kernel.org/linus/8d2b1a1ec9f559d30b724877da4ce592edc41fdc
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