CVE-2022-27881

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.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

1.90% chance of exploitation in the next 30 days, 78th percentile

Published

2022-03-25

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html

References

• CVE Record
• NVD entry

Related

• CVE-2022-27849
• CVE-2022-27882
• CVE-2022-27804
• CVE-2022-27924
• CVE-2022-27782
• CVE-2022-27925