The DirectShow loader (loader/dshow/DS_VideoDecoder.c) in MPlayer 1.0rc1 and earlier, as used in xine-lib, does not set the biSize before use in a memcpy, which allows user-assisted remote attackers to cause a buffer overflow and possibly execute arbitrary code, a different vulnerability than CVE-2007-1246.
http://www.securityfocus.com/bid/22933
http://www.mandriva.com/security/advisories?name=MDKSA-2007:062
http://www.mandriva.com/security/advisories?name=MDKSA-2007:061
http://www.debian.org/security/2008/dsa-1536
http://security.gentoo.org/glsa/glsa-200705-21.xml
http://secunia.com/advisories/29601
http://secunia.com/advisories/25462
http://secunia.com/advisories/24462
http://secunia.com/advisories/24444