Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ovs_ct_limit_exit, 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 | >= 4.18, < 4.19.313 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994Patch
- https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3Patch
- https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424Patch
- https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2Patch
- https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4Patch
- https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1Patch
- https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137Patch
- https://git.kernel.org/stable/c/edee0758747d7c219e29db9ed1d4eb33e8d32865Patch
- https://git.kernel.org/stable/c/2db9a8c0a01fa1c762c1e61a13c212c492752994Patch
- https://git.kernel.org/stable/c/35880c3fa6f8fe281a19975d2992644588ca33d3Patch
- https://git.kernel.org/stable/c/589523cf0b384164e445dd5db8d5b1bf97982424Patch
- https://git.kernel.org/stable/c/5ea7b72d4fac2fdbc0425cd8f2ea33abe95235b2Patch
- https://git.kernel.org/stable/c/9048616553c65e750d43846f225843ed745ec0d4Patch
- https://git.kernel.org/stable/c/bca6fa2d9a9f560e6b89fd5190b05cc2f5d422c1Patch
- https://git.kernel.org/stable/c/eaa5e164a2110d2fb9e16c8a29e4501882235137Patch
FAQ
What is CVE-2024-27395?
CVE-2024-27395 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix Use-After-Free in ovs_ct_exit Since kfree_rcu, which is called in the hlist_for_each_entry_rcu traversal of ...
How severe is CVE-2024-27395?
CVE-2024-27395 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-2024-27395?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.