CVE-2022-27881

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Published Mar 25, 2022 CVSS 3.1 · 7.5 High EPSS 1.9% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-32369	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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.9% (1.898% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/030_slaacd.patch.sig
https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/014_slaacd.patch.sig
https://security.netapp.com/advisory/ntap-20220506-0005/

History

No history.

Subscriptions

Openbsd Openbsd

Weaknesses

CWE-120

Sources

CVE record Updated: Aug 3, 2024, 5:41 AM

Status: PUBLISHED
Assigner: mitre
Published: Mar 25, 2022, 5:13 PM
Updated: Aug 3, 2024, 5:41 AM
Reserved: Mar 25, 2022, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:37 AM

Status: Modified
Published: Mar 25, 2022, 6:15 PM
Modified: Jun 17, 2026, 4:37 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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