CVE-2024-40993
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix suspicious rcu_dereference_protected() When destroying all sets, we are either in pernet exit phase or are executing a "destroy all sets command" from userspace. The latter was taken into account in ip_set_dereference() (nfnetlink mutex is held), but the former was not. The patch adds the required check to rcu_dereference_protected() in ip_set_dereference().
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1Patch
- https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5Patch
- https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2Patch
- https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797aPatch
- https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33Patch
- https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6Patch
- https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4Patch