* SECURITY UPDATE: denial of service and possible code execution via
  out-of-bands access
  - debian/patches/CVE-2013-1872.patch: check for out-of-bounds reads in
    src/mesa/drivers/dri/i965/brw_fs.cpp,
    src/mesa/drivers/dri/i965/brw_fs.h,
    src/mesa/drivers/dri/i965/brw_fs_visitor.cpp.
  - CVE-2013-1872
* SECURITY UPDATE: denial of service and possible code execution via
  integer overflows
  - debian/patches/CVE-2013-1993.patch: check lengths in
    src/glx/XF86dri.c.
  - CVE-2013-1993