What’s Vulnerable › Vulnerabilities

CVE-2024-45018: netfilter: flowtable: initialise extack before use

• Severity: medium (CVSS 5.5 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: 2024-09-11 · updated 2026-10-15
• Weakness: CWE-665

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: initialise extack before use Fix missing initialisation of extack in flow offload.

Affected products

• Linux kernel: from 5.5 before 5.10.225; from 5.11 before 5.15.166; from 5.16 before 6.1.107; from 6.2 before 6.6.48; from 6.7 before 6.10.7; 6.11-rc1, 6.11-rc2, 6.11-rc3 — fixed in 5.10.225, 5.15.166, 6.1.107, 6.10.7, 6.6.48

How to fix

Upgrade to a fixed version: Linux kernel 5.10.225, 5.15.166, 6.1.107, 6.10.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/119be227bc04f5035efa64cb823b8a5ca5e2d1c1
• https://git.kernel.org/stable/c/356beb911b63a8cff34cb57f755c2a2d2ee9dec7
• https://git.kernel.org/stable/c/7eafeec6be68ebd6140a830ce9ae68ad5b67ec78
• https://git.kernel.org/stable/c/c7b760499f7791352b49b11667ed04b23d7f5b0f
• https://git.kernel.org/stable/c/e5ceff2196dc633c995afb080f6f44a72cff6e1d
• https://git.kernel.org/stable/c/e9767137308daf906496613fd879808a07f006a2
• https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
• https://cert-portal.siemens.com/productcert/html/ssa-265688.html

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