CVE-2023-51384

openssh: destination constraints only apply to first PKCS#11 key

Published Dec 18, 2023 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
In ssh-agent in OpenSSH before 9.6, certain destination constraints can be incompletely applied. When destination constraints are specified during addition of PKCS#11-hosted private keys, these constraints are only applied to the first key, even if a PKCS#11 token returns multiple keys.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5586-1 openssh security update
Ubuntu USN Ubuntu USN USN-6565-1 OpenSSH vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00038}

epss

{'score': 0.00039}

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 10, 2026, 12:33 PM
Reserved
Dec 18, 2023, 12:00 AM
Status
Modified
Published
Dec 18, 2023, 7:15 PM
Modified
Nov 10, 2026, 1:17 PM
Severity
Low
Public date
Dec 18, 2023, 12:00 AM