What’s Vulnerable › Vulnerabilities
CVE-2023-3610: Use-after-free in Linux kernel's netfilter: nf_tables component
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-07-21 · updated 2026-10-14
- Weakness: CWE-416
Description
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.
Affected products
- Debian Linux: 10.0, 11.0
- Linux kernel: from 5.9 before 5.10.188; from 5.11 before 5.15.119; from 5.16 before 6.1.36; from 6.2 before 6.3.10 — fixed in 5.10.188, 5.15.119, 6.1.36, 6.3.10
How to fix
Upgrade to a fixed version: Linux kernel 5.10.188, 5.15.119, 6.1.36, 6.3.10. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=4bedf9eee016286c835e3d8fa981ddece5338795
- https://kernel.dance/4bedf9eee016286c835e3d8fa981ddece5338795
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
- https://security.netapp.com/advisory/ntap-20230818-0005/
- https://www.debian.org/security/2023/dsa-5461
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=4bedf9eee016286c835e3d8fa981ddece5338795
- https://kernel.dance/4bedf9eee016286c835e3d8fa981ddece5338795
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
- https://security.netapp.com/advisory/ntap-20230818-0005/
- https://www.debian.org/security/2023/dsa-5461
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html
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