Use-after-free in Linux kernel's netfilter: nf_tables component
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Flaw in the error handling of bound chains causes a use-after-free in the abort path of NFT_MSG_NEWRULE. The vulnerability requires CAP_NET_ADMIN to be triggered. We recommend upgrading past commit 4bedf9eee016286c835e3d8fa981ddece5338795.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Kernel | 5.9 to before 6.4 | 6.4 | Patch available | CNA |
- Kernel VendorLinux Affected 5.9 to before 6.4 Fixed in 6.4 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.9 to before 5.10.188; 5.11 to before 5.15.119; 5.16 to before 6.1.36; 6.2 to before 6.3.10 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.9 to before 5.10.188; 5.11 to before 5.15.119; 5.16 to before 6.1.36; 6.2 to before 6.3.10 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA Kernel (Linux) Fixed in 6.4
Red Hat 3 advisories
- RHSA-2023:5069 Released 2023-09-12 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.30.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.30.1.el9_2, kernel-64k-devel-5.14.0-284.30.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.30.1.el9_2, kernel-5.14.0-284.30.1.el9_2, kernel-64k-5.14.0-284.30.1.el9_2 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.30.1.el9_2
- RHSA-2023:5093 Released 2023-09-12 · Red Hat rating Importantkpatch-patch security update
- Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-284_11_1-1-5.el9_2, kpatch-patch-5_14_0-284_18_1-1-4.el9_2, kpatch-patch-5_14_0-284_25_1-1-3.el9_2
- RHSA-2023:5091 Released 2023-09-12 · Red Hat rating Importantkernel-rt security and bug fix update
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-284.30.1.rt14.315.el9_2, kernel-rt-core-5.14.0-284.30.1.rt14.315.el9_2, kernel-rt-debug-5.14.0-284.30.1.rt14.315.el9_2 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-284.30.1.rt14.315.el9_2, kernel-rt-core-5.14.0-284.30.1.rt14.315.el9_2, kernel-rt-debug-5.14.0-284.30.1.rt14.315.el9_2 +9
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:5069 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:5069, RHSA-2023:5093 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2023:5069 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2023:5091 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2023:5091 |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux AppStream (v. 9)
Timeline
- 2026-10-02 Threatist record created from CVE-2023-3610
- 2026-10-03 Alias added: GHSA-gcrv-hhf7-6qvh
References
Patch 2
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2023-3610 · CVE Program
- CVE-2023-3610 · NVD
- FIRST EPSS
- GHSA-gcrv-hhf7-6qvh · GitHub Advisory Database · CC BY 4.0
- CVE-2023-3610 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences