diff options
Diffstat (limited to 'media-libs/tiff/files/tiff-4.0.7-bug2598.patch')
| -rw-r--r-- | media-libs/tiff/files/tiff-4.0.7-bug2598.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/media-libs/tiff/files/tiff-4.0.7-bug2598.patch b/media-libs/tiff/files/tiff-4.0.7-bug2598.patch new file mode 100644 index 000000000000..c0a0d1a8db1a --- /dev/null +++ b/media-libs/tiff/files/tiff-4.0.7-bug2598.patch @@ -0,0 +1,31 @@ +http://bugzilla.maptools.org/show_bug.cgi?id=2598 + +From bc3d7392e43545c7c6375897458a7a3e8ee4d9d8 Mon Sep 17 00:00:00 2001 +From: Even Rouault <even.rouault@spatialys.com> +Date: Fri, 2 Dec 2016 22:13:32 +0000 +Subject: [PATCH] * tools/tiffcp.c: avoid uint32 underflow in cpDecodedStrips + that can cause various issues, such as buffer overflows in the library. + Reported by Agostino Sarubbo. Fixes + http://bugzilla.maptools.org/show_bug.cgi?id=2598 + +--- + ChangeLog | 7 +++++++ + tools/tiffcp.c | 4 ++-- + 2 files changed, 9 insertions(+), 2 deletions(-) + +diff --git a/tools/tiffcp.c b/tools/tiffcp.c +index 338a3d113bf8..6dfb9a91bfa9 100644 +--- a/tools/tiffcp.c ++++ b/tools/tiffcp.c +@@ -985,7 +985,7 @@ DECLAREcpFunc(cpDecodedStrips) + tstrip_t s, ns = TIFFNumberOfStrips(in); + uint32 row = 0; + _TIFFmemset(buf, 0, stripsize); +- for (s = 0; s < ns; s++) { ++ for (s = 0; s < ns && row < imagelength; s++) { + tsize_t cc = (row + rowsperstrip > imagelength) ? + TIFFVStripSize(in, imagelength - row) : stripsize; + if (TIFFReadEncodedStrip(in, s, buf, cc) < 0 +-- +2.12.0 + |