Home/CVE/slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow
CVE

CVE-2022-27882

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation.

HIGH · CVSS 7.5 EPSS 0.00908
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  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-681Incorrect Conversion between Numeric Types
▤

Affected Products & Versions

1
openbsdall versions
⚠

Public Exploits & PoCs

1
pocblog.quarkslab.com · heap-overflow-in-openbsds-slaacd-via-router-advertisement...blog.quarkslab.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD25 Mar 2022 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/033_slaacd.patch.sigPatchRelease NotesVendor Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/017_slaacd.patch.sigPatchRelease NotesVendor Advisory
https://security.netapp.com/advisory/ntap-20220506-0005/Third Party Advisory
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