CVE-2022-27881

Name of the Vulnerable Software and Affected Versions OpenBSD versions 6.9 through 7.0 before 2022-02-21

Description The issue is related to a buffer overflow in the engine.c file of the slaacd component. This overflow can be triggered by an IPv6 router advertisement that contains more than seven nameservers. It is noted that privilege separation and pledge can prevent the exploitation of this issue.

Recommendations For OpenBSD versions 6.9 through 7.0 before 2022-02-21, consider applying privilege separation and pledge to prevent exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.