src/sdp.c in bluez-libs 3.30 in BlueZ, and other bluez-libs before 3.34 and bluez-utils before 3.34 versions, does not validate string length fields in SDP packets, which allows remote SDP servers to cause a denial of service or possibly have unspecified other impact via a crafted length field that triggers excessive memory allocation or a buffer over-read.
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00233.html
https://www.redhat.com/archives/fedora-package-announce/2008-October/msg00396.html
http://www.bluez.org/bluez-334/
http://security.gentoo.org/glsa/glsa-200903-29.xml
http://lists.opensuse.org/opensuse-security-announce/2008-09/msg00005.html