High severity · published Mar 25, 2022
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
7.5
CVSS
1.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openbsd · Openbsd
6.9; 7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27882
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-27882
Exploit
https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html
Patch
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/033_slaacd.patch.sig
Patch
https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/017_slaacd.patch.sig
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220506-0005/
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