Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KEYS: prevent NULL pointer dereference in find_asymmetric_key() In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2} arguments, the kernel will first emit WARN but then have an oops because id_2 gets dereferenced anyway. Add the missing id_2 check and move WARN_ON() to the final else branch to avoid duplicate NULL checks. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.17, < 6.1.113 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0d3b0706ada15c333e6f9faf19590ff715e45d1ePatch
- https://git.kernel.org/stable/c/13b5b401ead95b5d8266f64904086c55b6024900Patch
- https://git.kernel.org/stable/c/3322fa8f2aa40b0b3651034cd541647a600cc6c0Patch
- https://git.kernel.org/stable/c/70fd1966c93bf3bfe3fe6d753eb3d83a76597eefPatch
- https://git.kernel.org/stable/c/a3765b497a4f5224cb2f7a6a2d3357d3066214eePatch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
FAQ
What is CVE-2024-47743?
CVE-2024-47743 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: KEYS: prevent NULL pointer dereference in find_asymmetric_key() In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2...
How severe is CVE-2024-47743?
CVE-2024-47743 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-47743?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.