Vulnerability in OpenBSD
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 triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- OpenBSD — versions 6.9, 7.0
Weakness classification (CWE)
References
- blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.ht… (Exploit, Third Party Advisory)
- ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/017_slaacd.patch.sig (Patch, Release Notes, Vendor Advisory)
- ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/033_slaacd.patch.sig (Patch, Release Notes, Vendor Advisory)
- security.netapp.com/advisory/ntap-20220506-0005/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-27882?
- CVE-2022-27882 is a high-severity vulnerability in OpenBSD, classified under Incorrect Conversion between Numeric Types. CVSS score: 7.5/10. Published 2022-03-25.
- How severe is CVE-2022-27882?
- High severity. CVSS v3 base score is 7.5 out of 10.