CVE-2009-0021

CVE information

Published

13 years ago

Last Modified

3 years ago

CVSSv2.0 Severity

Medium

Impact Analysis

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..

CVSSv2.0 Score

Severity
Medium
Base Score
5/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
2.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:ntp:ntp:4.2.2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.0:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.4p2:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.4p1:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:4.2.4p3:*:*:*:*:*:*:*
  Yes
- -
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
  Yes
- -

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