Description
The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.
Published: 2017-06-08
Score: 7.5 High
EPSS: 1.2% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-973-1 strongswan security update
Debian DSA Debian DSA DSA-3866-1 strongswan security update
EUVD EUVD EUVD-2017-17963 The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.
Ubuntu USN Ubuntu USN USN-3301-1 strongSwan vulnerabilities
History

Wed, 03 Dec 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Strongswan Strongswan
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-12-03T21:13:34.693Z

Reserved: 2017-05-16T00:00:00.000Z

Link: CVE-2017-9023

cve-icon Vulnrichment

Updated: 2024-08-05T16:55:21.811Z

cve-icon NVD

Status : Modified

Published: 2017-06-08T16:29:00.543

Modified: 2026-05-13T00:24:29.033

Link: CVE-2017-9023

cve-icon Redhat

Severity : Moderate

Publid Date: 2017-05-30T00:00:00Z

Links: CVE-2017-9023 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses