CVE-2024-40993

critical

Description

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().

References

https://git.kernel.org/stable/c/94dd411c18d7fff9e411555d5c662d29416501e4

https://git.kernel.org/stable/c/8ecd06277a7664f4ef018abae3abd3451d64e7a6

https://git.kernel.org/stable/c/788d585e62f487bc4536d454937f737b70d39a33

https://git.kernel.org/stable/c/72d9611968867cc4c5509e7708b1507d692b797a

https://git.kernel.org/stable/c/523bed6489e089dd8040e72453fb79da47b144c2

https://git.kernel.org/stable/c/3fc09e1ca854bc234e007a56e0f7431f5e2defb5

https://git.kernel.org/stable/c/3799d02ae4208af08e81310770d8754863a246a1

Details

Source: Mitre, NVD

Published: 2024-07-12

Updated: 2024-07-12

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical