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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-1702-1 | New ntp packages fix cryptographic weakness |
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 |
USN-705-1 | NTP vulnerability |
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-07T04:17:10.427Z
Reserved: 2008-12-15T00:00:00.000Z
Link: CVE-2009-0021
No data.
Status : Modified
Published: 2009-01-07T17:30:00.360
Modified: 2026-04-23T00:35:47.467
Link: CVE-2009-0021
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD
Ubuntu USN