CVE-2022-27881

ALTO 7.5CVE-2022-27881 · Published 25/03/2022 · updated 17/06/2026

En resumen

CVE-2022-27881 es una vulnerabilidad ALTO (CVSS 7.5) que afecta a openbsd (openbsd).
Probabilidad de explotación en los próximos 30 días (EPSS): 1.9%, mayor que el 79.7% de las vulnerabilidades.
Aún no hay una versión corregida: sigue el aviso del fabricante en Referencias.

Package	Affected versions	Patched versions
openbsd openbsd	`= 6.9= 7.0`	No fix yet

Description

engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.

References

blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html · Exploit
ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sig · Patch
ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sig · Patch
security.netapp.com/advisory/ntap-20220506-0005 · Third Party Advisory

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