CVE-2024-49995: tipc: guard against string buffer overrun
First published: Mon Oct 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: tipc: guard against string buffer overrun Smatch reports that copying media_name and if_name to name_parts may overwrite the destination. .../bearer.c:166 bearer_name_validate() error: strcpy() 'media_name' too large for 'name_parts->media_name' (32 vs 16) .../bearer.c:167 bearer_name_validate() error: strcpy() 'if_name' too large for 'name_parts->if_name' (1010102 vs 16) This does seem to be the case so guard against this possibility by using strscpy() and failing if truncation occurs. Introduced by commit b97bf3fd8f6a ("[TIPC] Initial merge") Compile tested only.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <5.10.227 | |
| Linux Linux kernel | >=5.11<5.15.168 | |
| Linux Linux kernel | >=5.16<6.1.113 | |
| Linux Linux kernel | >=6.2<6.6.55 | |
| Linux Linux kernel | >=6.7<6.10.14 | |
| Linux Linux kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/12d26aa7fd3cbdbc5149b6e516563478d575026e
- https://git.kernel.org/stable/c/2ed7f42dfd3edb387034128ca5b0f639836d4ddd
- https://git.kernel.org/stable/c/54dae0e9063ed23c9acf8d5ab9b18d3426a8ac18
- https://git.kernel.org/stable/c/6555a2a9212be6983d2319d65276484f7c5f431a
- https://git.kernel.org/stable/c/80c0be7bcf940ce9308311575c3aff8983c9b97a
- https://git.kernel.org/stable/c/8298b6e45fb4d8944f356b08e4ea3e54df5e0488
- https://git.kernel.org/stable/c/a18c7b239d02aafb791ae2c45226f6bb40641792
- https://git.kernel.org/stable/c/c79768ffba5b6e95569a463a69b3101c95694867
- https://git.kernel.org/stable/c/e2b2558971e02ca33eb637a8350d68a48b3e8e46
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49995
- https://nvd.nist.gov/vuln/detail/CVE-2024-49995
- https://launchpad.net/bugs/cve/CVE-2024-49995
- https://security-tracker.debian.org/tracker/CVE-2024-49995
- https://ubuntu.com/security/CVE-2024-49995
- https://git.kernel.org/linus/6555a2a9212be6983d2319d65276484f7c5f431a
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