The dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL before 1.0.0 Beta 2 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence DTLS handshake message, related to a "fragment bug."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7592
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10740
http://www.vupen.com/english/advisories/2010/0528
http://www.ubuntu.com/usn/USN-792-1
http://www.redhat.com/support/errata/RHSA-2009-1335.html
http://www.openwall.com/lists/oss-security/2009/06/02/1
http://voodoo-circle.sourceforge.net/sa/sa-20091012-01.html
http://security.gentoo.org/glsa/glsa-200912-01.xml
http://secunia.com/advisories/38834
http://secunia.com/advisories/38794
http://secunia.com/advisories/37003
http://secunia.com/advisories/36533
http://secunia.com/advisories/35729
http://secunia.com/advisories/35685
http://secunia.com/advisories/35571
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html