CVE-2022-23089: Out of bound read in elf_note_prpsinfo()

Severity: medium (CVSS 4.7 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: 2024-02-15 · updated 2026-06-17
Weakness: CWE-125

Description

When dumping core and saving process information, proc_getargv() might return an sbuf which have a sbuf_len() of 0 or -1, which is not properly handled. An out-of-bound read can happen when user constructs a specially crafted ps_string, which in turn can cause the kernel to crash.

Affected products

FreeBSD: before 12.3; from 12.4 before 13.0; 12.3-beta1, 12.3-p1, 12.3-p2, 12.3-p3, 12.3-p4, 12.3-p5 (+25) — fixed in 12.3, 13.0

How to fix

Upgrade to a fixed version: FreeBSD 12.3, 13.0. Check the vendor advisory for mitigations.

References

https://security.freebsd.org/advisories/FreeBSD-SA-22:09.elf.asc
https://security.netapp.com/advisory/ntap-20240415-0006/
https://security.freebsd.org/advisories/FreeBSD-SA-22:09.elf.asc
https://security.netapp.com/advisory/ntap-20240415-0006/

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