A flaw was foung in LibTIFF 4.0.9. There is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c that could lead to information disclosure and denial of service.
Created libtiff tracking bugs for this issue:
Affects: fedora-all [bug 1529528]
Created mingw-libtiff tracking bugs for this issue:
Affects: epel-7 [bug 1529526]
Affects: fedora-all [bug 1529525]