ZXID 0.29 and earlier does not properly check the return value from the OpenSSL DSA_verify function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a different vulnerability than CVE-2008-5077 and probably CVE-2009-0021.

More... (http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-0051)