Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to use the timestamp, this avoids that an element expires while control plane transaction is still unfinished. .lookup and .update, which are used from packet path, still use the current time to check if the element has expired. And .get path and dump also since this runs lockless under rcu read size lock. Then, there is async gc which also needs to check the current time since it runs asynchronously from a workqueue.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.1, < 4.19.320 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0d40e8cb1d1f56a994cdd2e015af622fdca9ed4dPatch
- https://git.kernel.org/stable/c/383182db8d58c4237772ba0764cded4938a235c3Patch
- https://git.kernel.org/stable/c/7395dfacfff65e9938ac0889dafa1ab01e987d15Patch
- https://git.kernel.org/stable/c/7b17de2a71e56c10335b565cc7ad238e6d984379Patch
- https://git.kernel.org/stable/c/7fa2e2960fff8322ce2ded57b5f8e9cbc450b967Patch
- https://git.kernel.org/stable/c/b45176b869673417ace338b87cf9cdb66e2eeb01Patch
- https://git.kernel.org/stable/c/eaf1a29ea5d7dba8e84e9e9f3b3f47d0cd540bfePatch
- https://git.kernel.org/stable/c/f8dfda798650241c1692058713ca4fef8e429061Patch
- https://git.kernel.org/stable/c/383182db8d58c4237772ba0764cded4938a235c3Patch
- https://git.kernel.org/stable/c/7395dfacfff65e9938ac0889dafa1ab01e987d15Patch
- https://git.kernel.org/stable/c/b45176b869673417ace338b87cf9cdb66e2eeb01Patch
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
FAQ
What is CVE-2024-27397?
CVE-2024-27397 is a vulnerability with a CVSS score of 7.0 (HIGH). In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, st...
How severe is CVE-2024-27397?
CVE-2024-27397 has been rated HIGH with a CVSS base score of 7.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-27397?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.