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.

References

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10035

https://lists.ntp.org/pipermail/announce/2009-January/000055.html

http://www.vupen.com/english/advisories/2009/1297

http://www.vupen.com/english/advisories/2009/0042

http://www.us-cert.gov/cas/techalerts/TA09-133A.html

http://www.securitytracker.com/id?1021533

http://www.securityfocus.com/archive/1/499827/100/0/threaded

http://www.redhat.com/support/errata/RHSA-2009-0046.html

http://www.ocert.org/advisories/ocert-2008-016.html

http://support.apple.com/kb/HT3549

http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.531177

http://secunia.com/advisories/35074

http://secunia.com/advisories/34642

http://secunia.com/advisories/33648

http://secunia.com/advisories/33558

http://secunia.com/advisories/33406

http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html

http://lists.apple.com/archives/security-announce/2009/May/msg00002.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3