Description
NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077.
Published: 2009-01-07
Score: 5.0 Medium
EPSS: 2.2% 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 DSA Debian DSA DSA-1702-1 New ntp packages fix cryptographic weakness
EUVD EUVD EUVD-2009-0034 NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys, a similar vulnerability to CVE-2008-5077.
Ubuntu USN Ubuntu USN USN-705-1 NTP vulnerability
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T04:17:10.427Z

Reserved: 2008-12-15T00:00:00.000Z

Link: CVE-2009-0021

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2009-01-07T17:30:00.360

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-0021

cve-icon Redhat

Severity : Moderate

Publid Date: 2009-01-07T00:00:00Z

Links: CVE-2009-0021 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses