CVE-2022-27881

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.08% Top 25%
Vendor Advisory openbsd.org Vendor Advisory openbsd.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sig patch vendor advisory release notes
https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html patch third party advisory exploit
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sig patch vendor advisory release notes
https://security.netapp.com/advisory/ntap-20220506-0005/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-27881?
CVE-2022-27881 has been scored as a high severity vulnerability.
How to fix CVE-2022-27881?
To fix CVE-2022-27881, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-27881 being actively exploited in the wild?
It is possible that CVE-2022-27881 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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