Vulnerability 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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openbsd | 6.9 |
Related Weaknesses (CWE)
References
- https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertiseExploitPatchThird Party Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sigPatchRelease NotesVendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sigPatchRelease NotesVendor Advisory
- https://security.netapp.com/advisory/ntap-20220506-0005/Third Party Advisory
- https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertiseExploitPatchThird Party Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sigPatchRelease NotesVendor Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sigPatchRelease NotesVendor Advisory
- https://security.netapp.com/advisory/ntap-20220506-0005/Third Party Advisory
FAQ
What is CVE-2022-27881?
CVE-2022-27881 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ca...
How severe is CVE-2022-27881?
CVE-2022-27881 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-27881?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openbsd.