CVEvulnerability
CVE-2022-27881
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-03-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-120
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.
Affected configurations
• openbsd openbsd 6.9
• openbsd openbsd 7.0
Related
Weakness · CWE (1)
- CWE-120 Buffer Copy without Checking Size of Input weakness
References
- https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html Exploit, Patch, Third Party Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sig Patch, Release Notes, Vendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sig Patch, Release Notes, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220506-0005/ Third Party Advisory
- https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html Exploit, Patch, Third Party Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sig Patch, Release Notes, Vendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sig Patch, Release Notes, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220506-0005/ Third Party Advisory