CVE-2022-27881

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 v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
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

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openbsd:openbsd:7.0:::::::*
	cpe:2.3:a:openbsd:openbsd:6.9:::::::*

Information

Published : 2022-03-25 11:15

Updated : 2022-05-12 13:05

NVD link : CVE-2022-27881

Mitre link : CVE-2022-27881

JSON object : View

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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Products Affected

openbsd

openbsd

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