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High 7.8Published Jul 31, 2023
CVE-2023-4004Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 8 and 13 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | from 0:4.18.0-477.27.1.rt7.290.el8_8 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support redhat:rhel_e4s | from 0:4.18.0-193.119.1.el8_2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support redhat:rhel_aus | from 0:4.18.0-193.119.1.el8_2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support redhat:rhel_tus | from 0:4.18.0-193.119.1.el8_2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support redhat:rhel_eus | 8.6 | CNA record |
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support redhat:rhev_hypervisor | from 0:4.18.0-372.75.1.el8_6 not affected | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.6 before 5.10.188; from 5.11 before 5.15.123; from 5.16 before 6.1.42; from 6.2 before 6.4.7 | NVD |
fedoraproject fedora fedoraproject:fedora | 38 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 8.0; 9.0 | NVD |
netapp h300s netapp:h300s | all versions | NVD |
netapp h410s netapp:h410s | all versions | NVD |
netapp h500s netapp:h500s | all versions | NVD |
netapp h700s netapp:h700s | all versions | NVD |
debian debian_linux debian:debian_linux | 10.0; 11.0; 12.0 | NVD |
References
- https://access.redhat.com/errata/RHSA-2023:4961vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:4962vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:4967vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5069vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5091vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5093vendor-advisory, x-refsource-redhat, broken-link, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5221vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5244vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5255vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5548vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:5627vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:7382vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:7389vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2023:7411vendor-advisory, x-refsource-redhat, third-party-advisory, vdb-entry
- https://access.redhat.com/errata/RHSA-2023:7417vendor-advisory, x-refsource-redhat, third-party-advisory, vdb-entry
- https://access.redhat.com/errata/RHSA-2023:7431vendor-advisory, x-refsource-redhat, third-party-advisory, vdb-entry
- https://access.redhat.com/errata/RHSA-2023:7434vendor-advisory, x-refsource-redhat, third-party-advisory, vdb-entry
- https://access.redhat.com/security/cve/CVE-2023-4004vdb-entry, x-refsource-redhat, third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2225275issue-tracking, x-refsource-redhat, third-party-advisory
- https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230719190824.21196-1-fw@strlen.de/mailing-list, patch, third-party-advisory
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://security.netapp.com/advisory/ntap-20231027-0001/
- https://www.debian.org/security/2023/dsa-5480
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