What’s Vulnerable › Vulnerabilities

CVE-2022-48654: netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()

• 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: 2024-04-28 · updated 2026-08-04
• Weakness: CWE-908

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find() nf_osf_find() incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nft_osf which can be used to leak stale kernel stack data to userspace.

Affected products

• Linux kernel: from 5.2.0 before 5.4.215; from 5.5.0 before 5.10.146; from 5.11.0 before 5.15.71; from 5.16.0 before 5.19.12 — fixed in 5.10.146, 5.15.71, 5.19.12, 5.4.215

How to fix

Upgrade to a fixed version: Linux kernel 5.10.146, 5.15.71, 5.19.12, 5.4.215. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/559c36c5a8d730c49ef805a72b213d3bba155cc8
• https://git.kernel.org/stable/c/5d75fef3e61e797fab5c3fbba88caa74ab92ad47
• https://git.kernel.org/stable/c/633c81c0449663f57d4138326d036dc6cfad674e
• https://git.kernel.org/stable/c/721ea8ac063d70c2078c4e762212705de6151764
• https://git.kernel.org/stable/c/816eab147e5c6f6621922b8515ad9010ceb1735e
• https://git.kernel.org/stable/c/559c36c5a8d730c49ef805a72b213d3bba155cc8
• https://git.kernel.org/stable/c/5d75fef3e61e797fab5c3fbba88caa74ab92ad47
• https://git.kernel.org/stable/c/633c81c0449663f57d4138326d036dc6cfad674e
• https://git.kernel.org/stable/c/721ea8ac063d70c2078c4e762212705de6151764
• https://git.kernel.org/stable/c/816eab147e5c6f6621922b8515ad9010ceb1735e

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