Buffer Overflow Vulnerability in OpenBSD's SLAACD Component
CVE-2022-27881

7.5HIGH

Key Information:

Vendor

OpenBSD
Status
OpenBSD
Vendor
CVE Published:
25 March 2022

What is CVE-2022-27881?

The SLAACD component in OpenBSD versions 6.9 and 7.0 prior to February 21, 2022, contains a buffer overflow vulnerability that can be triggered by an IPv6 router advertisement. This occurs if the advertisement contains more than seven nameservers. While the potential for exploitation exists, mitigating factors such as privilege separation and pledge can reduce the risk.

References

https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/01...
x_refsource_MISC
https://blog.quarkslab.com/heap-overflow-in-openbsds-slaa...
x_refsource_MISC
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/03...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2022-27881 : Buffer Overflow Vulnerability in OpenBSD's SLAACD Component