Free and open-source vulnerability scanner
Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.
Install NowAvailable for macOS, Windows, and Linux
CVE-2009-0021
CVE information
Published
Last Modified
CVSSv2.0 Severity
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
|
- | - |
References
- http://www.ocert.org/advisories/ocert-2008-016.html
- http://secunia.com/advisories/33406
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-securit
- https://lists.ntp.org/pipermail/announce/2009-January/000055.html
- http://secunia.com/advisories/33558
- http://secunia.com/advisories/33648
- http://www.redhat.com/support/errata/RHSA-2009-0046.html
- http://www.securitytracker.com/id?1021533
- http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html
- http://secunia.com/advisories/34642
- http://www.vupen.com/english/advisories/2009/1297
- http://support.apple.com/kb/HT3549
- http://secunia.com/advisories/35074
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- http://www.us-cert.gov/cas/techalerts/TA09-133A.html
- http://www.vupen.com/english/advisories/2009/0042
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1
- http://www.securityfocus.com/archive/1/499827/100/0/threaded