CVE-2024-0193

Description

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

References

• MISC:RHBZ#2255653
• URL: https://bugzilla.redhat.com/show_bug.cgi?id=2255653
• MISC:RHSA-2024:1018
• URL: https://access.redhat.com/errata/RHSA-2024:1018
• MISC:RHSA-2024:1019
• URL: https://access.redhat.com/errata/RHSA-2024:1019
• MISC:RHSA-2024:1248
• URL: https://access.redhat.com/errata/RHSA-2024:1248
• MISC:RHSA-2024:2094
• URL: https://access.redhat.com/errata/RHSA-2024:2094
• MISC:RHSA-2024:4412
• URL: https://access.redhat.com/errata/RHSA-2024:4412
• MISC:RHSA-2024:4415
• URL: https://access.redhat.com/errata/RHSA-2024:4415
• MISC: https://access.redhat.com/security/cve/CVE-2024-0193
• URL: https://access.redhat.com/security/cve/CVE-2024-0193