CVE-2009-0021
EPSS 2.2%ntp - cryptographic weakness
Published: 1/7/2009Modified: 4/28/2026
Also known as:DEBIAN-CVE-2009-0021
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.
Affected packages (2)
- Debian/ntpfrom 0, < 1:4.2.4p4+dfsg-8
- Debian/ntpfrom 0, < 1:4.2.2.p4+dfsg-2etch1