CVE-2024-0193
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=2255653 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=2255653Patch
- https://access.redhat.com/errata/RHSA-2024:1018Advisory
- https://access.redhat.com/errata/RHSA-2024:1019Advisory
- https://access.redhat.com/errata/RHSA-2024:1248Advisory
- https://access.redhat.com/errata/RHSA-2024:2094Advisory
- https://access.redhat.com/errata/RHSA-2024:4412Advisory
- https://access.redhat.com/errata/RHSA-2024:4415Advisory
- https://access.redhat.com/security/cve/CVE-2024-0193Advisory