CVE-2024-0193
Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation
MEDIUM 6.7EPSS 0.8%
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.
- Affected
- Red Hat · kernel · Red Hat Enterprise Linux 9 · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions · Red Hat Enterprise Linux 9.2 Extended Update Support · RHOL-5.8-RHEL-9
- CVSS v3.1 NVD
- 6.7 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 REDHAT
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.84% chance of exploitation in the next 30 days, 57th percentile
- Published
- 2024-01-02
- Updated
- 2026-03-04
Exploit collections (3)
- linux/kernelctf/CVE-2024-0193_cosgoogle/security-research
- linux/kernelctf/CVE-2024-0193_ltsgoogle/security-research
- linux/kernelctf/CVE-2024-0193_mitigationgoogle/security-research
Security advisories
- https://access.redhat.com/errata/RHSA-2024:1018
- https://access.redhat.com/errata/RHSA-2024:1019
- https://access.redhat.com/errata/RHSA-2024:1248
- https://access.redhat.com/errata/RHSA-2024:2094
- https://access.redhat.com/errata/RHSA-2024:4412
- https://access.redhat.com/errata/RHSA-2024:4415
- https://access.redhat.com/security/cve/CVE-2024-0193
- https://bugzilla.redhat.com/show_bug.cgi?id=2255653