Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: gtp: Fix Use-After-Free in gtp_dellink Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of gtp_dellink, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.14.162, < 4.15 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/07b20d0a3dc13fb1adff10b60021a4924498da58Patch
- https://git.kernel.org/stable/c/0caff3e6390f840666b8dc1ecebf985c2ef3f1ddPatch
- https://git.kernel.org/stable/c/25a1c2d4b1fcf938356a9688a96a6456abd44b29Patch
- https://git.kernel.org/stable/c/2aacd4de45477582993f8a8abb9505a06426bfb6Patch
- https://git.kernel.org/stable/c/2e74b3fd6bf542349758f283676dff3660327c07Patch
- https://git.kernel.org/stable/c/718df1bc226c383dd803397d7f5d95557eb81ac7Patch
- https://git.kernel.org/stable/c/cd957d1716ec979d8f5bf38fc659aeb9fdaa2474Patch
- https://git.kernel.org/stable/c/f2a904107ee2b647bb7794a1a82b67740d7c8a64Patch
- https://git.kernel.org/stable/c/07b20d0a3dc13fb1adff10b60021a4924498da58Patch
- https://git.kernel.org/stable/c/0caff3e6390f840666b8dc1ecebf985c2ef3f1ddPatch
- https://git.kernel.org/stable/c/25a1c2d4b1fcf938356a9688a96a6456abd44b29Patch
- https://git.kernel.org/stable/c/2aacd4de45477582993f8a8abb9505a06426bfb6Patch
- https://git.kernel.org/stable/c/2e74b3fd6bf542349758f283676dff3660327c07Patch
- https://git.kernel.org/stable/c/718df1bc226c383dd803397d7f5d95557eb81ac7Patch
- https://git.kernel.org/stable/c/cd957d1716ec979d8f5bf38fc659aeb9fdaa2474Patch
FAQ
What is CVE-2024-27396?
CVE-2024-27396 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: net: gtp: Fix Use-After-Free in gtp_dellink Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of gtp_delli...
How severe is CVE-2024-27396?
CVE-2024-27396 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-27396?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.