CVE-2023-4569
Kernel: information leak in nft_set_catchall_flush in net/netfilter/nf_tables_api.c
MEDIUM 5.5EPSS 0.3%
A memory leak flaw was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which can result in a memory leak.
- Affected
- Red Hat · Fedora · Kernel · Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
- CVSS v3.1 NVD
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v3.1 REDHAT
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS
- 0.26% chance of exploitation in the next 30 days, 17th percentile
- Published
- 2023-08-28
- Updated
- 2025-02-27
Proof-of-concept exploits (1)
- LxxxtSec/Saligia-Labs1★ · 2026-09-04
Exploit collections (1)
- linux/kernelctf/CVE-2023-4569_ltsgoogle/security-research
Security advisories
- https://access.redhat.com/security/cve/CVE-2023-4569
- https://bugzilla.redhat.com/show_bug.cgi?id=2235470
- https://www.debian.org/security/2023/dsa-5492
- https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230812110526.49808-1-fw@strl…