NTP 4.2.4 before 4.2.4p5 and 4.2.5 before 4.2.5p150 does not...

Vulnerability 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

• http://support.apple.com/kb/HT3549
• http://www.securityfocus.com/archive/1/499827/100/0/threaded
• http://www.securitytracker.com/id?1021533
• https://lists.ntp.org/pipermail/announce/2009-January/000055.html
• http://secunia.com/advisories/34642
• http://www.redhat.com/support/errata/RHSA-2009-0046.html
• http://secunia.com/advisories/35074
• http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
• http://secunia.com/advisories/33558
• http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00000.html
• http://www.ocert.org/advisories/ocert-2008-016.html
• http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.531177
• http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html
• http://secunia.com/advisories/33648
• http://secunia.com/advisories/33406
• http://www.us-cert.gov/cas/techalerts/TA09-133A.html
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10035
• http://www.vupen.com/english/advisories/2009/1297
• http://www.vupen.com/english/advisories/2009/0042