CVE-2024-27397
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.