The decrypt_public function in lib/crypt.cpp in the client in Berkeley Open Infrastructure for Network Computing (BOINC) 6.2.14 and 6.4.5 does not check the return value from the OpenSSL RSA_public_decrypt function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.
https://www.redhat.com/archives/fedora-package-announce/2009-February/msg00034.html
http://secunia.com/advisories/33828
http://secunia.com/advisories/33806
http://openwall.com/lists/oss-security/2009/01/12/4
http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html