xorg-x11-server: out of bounds access due to not validating length or offset values in DBE extension

Multiple out-of-bounds access flaws were found in the way the X.Org server calculated memory requirements for certain requests. A malicious, authenticated client could use either of these flaws to crash the X.Org server, or leak memory contents to the client...

UBUNTU-CVE-2014-8097

The DBE extension in X.Org X Window System aka X11 or X X11R6.1 and X.Org Server aka xserver and xorg-server before 1.16.3 allows remote authenticated users to cause a denial of service out-of-bounds read or write or possibly execute arbitrary code via a crafted length or index value to the 1...