Vulnerability Database

289,689

Total vulnerabilities in the database

CVE-2009-0021

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: Jan 7, 2009
  • Updated: Apr 13, 2023
  • CVE: CVE-2009-0021
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:P/I:N/A:N

CWEs:

OWASP TOP 10:

Software From Fixed in
ntp / ntp 4.2.2 4.2.2.x
ntp / ntp 4.2.0 4.2.0.x
ntp / ntp 4.2.4p2 4.2.4p2.x
ntp / ntp 4.2.4p1 4.2.4p1.x
ntp / ntp 4.2.4p3 4.2.4p3.x
ntp / ntp - 4.2.4p4.x