The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15505
http://www.redhat.com/archives/fedora-announce-list/2005-October/msg00087.html
http://www.openssl.org/news/secadv_20040317.txt
http://www.mandriva.com/security/advisories?name=MDKSA-2004:023
http://www.kb.cert.org/vuls/id/288574
http://www.debian.org/security/2004/dsa-465
http://support.avaya.com/elmodocs2/security/ASA-2005-239.htm
http://security.gentoo.org/glsa/glsa-200403-03.xml
http://marc.info/?l=bugtraq&m=108403806509920&w=2
http://marc.info/?l=bugtraq&m=107953412903636&w=2
http://lists.apple.com/archives/security-announce/2005/Aug/msg00000.html
http://lists.apple.com/archives/security-announce/2005//Aug/msg00001.html