CVE-2009-0021
The MITRE CVE dictionary describes this issue as:
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.
Find out more about CVE-2009-0021 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v2 metrics
| Base Score | 4.3 |
|---|---|
| Base Metrics | AV:N/AC:M/Au:N/C:P/I:N/A:N |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Red Hat Security Errata
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 4 (ntp) | RHSA-2009:0046 | 2009-01-29 |
| Red Hat Enterprise Linux 5 (ntp) | RHSA-2009:0046 | 2009-01-29 |
CVE description copyright © 2017, The MITRE Corporation