CVE-2024-0193

Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

State: Published
Severity: 7.8 High
Published: Jan 2, 2024
Updated: Mar 4, 2026
Reserved: Jan 2, 2024

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
kernel
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.24.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:5.14.0-362.24.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat	0:5.14.0-70.105.1.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat	0:5.14.0-70.105.1.rt21.177.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:5.14.0-284.55.1.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:5.14.0-284.55.1.rt14.340.el9_2 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-22 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-11 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v6.8.1-407 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-19 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.0.0-479 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-7 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.4.0-247 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-5 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v1.1.0-227 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.1-470 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v2.9.6-14 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-2 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-24 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v5.8.6-10 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-525 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.1.0-224 and laterNot affected
RHOL-5.8-RHEL-9Red Hat	v0.28.1-56 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 9Red Hat

References

RHSA-2024:1018vendor-advisory
RHSA-2024:1019vendor-advisory
RHSA-2024:1248vendor-advisory
RHSA-2024:2094vendor-advisory
RHSA-2024:4412vendor-advisory
RHSA-2024:4415vendor-advisory
https://access.redhat.com/security/cve/CVE-2024-0193vdb-entry
RHBZ#2255653issue-tracking

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