diff options
Diffstat (limited to 'media-libs/tiff/files/tiff-4.0.7-CVE-2017-5225.patch')
| -rw-r--r-- | media-libs/tiff/files/tiff-4.0.7-CVE-2017-5225.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/media-libs/tiff/files/tiff-4.0.7-CVE-2017-5225.patch b/media-libs/tiff/files/tiff-4.0.7-CVE-2017-5225.patch new file mode 100644 index 000000000000..7f961474ba9c --- /dev/null +++ b/media-libs/tiff/files/tiff-4.0.7-CVE-2017-5225.patch @@ -0,0 +1,74 @@ +https://bugs.gentoo.org/610330 + +From 24bc05876f5a1a300a3c4eb0fa8e8cea6a256f9f Mon Sep 17 00:00:00 2001 +From: Even Rouault <even.rouault@spatialys.com> +Date: Wed, 11 Jan 2017 19:25:44 +0000 +Subject: [PATCH] * tools/tiffcp.c: error out cleanly in cpContig2SeparateByRow + and cpSeparate2ContigByRow if BitsPerSample != 8 to avoid heap based + overflow. Fixes http://bugzilla.maptools.org/show_bug.cgi?id=2656 and + http://bugzilla.maptools.org/show_bug.cgi?id=2657 + +--- + ChangeLog | 7 +++++++ + tools/tiffcp.c | 26 +++++++++++++++++++++++--- + 2 files changed, 30 insertions(+), 3 deletions(-) + +diff --git a/tools/tiffcp.c b/tools/tiffcp.c +index 49c9d37125a6..489459a7f6a4 100644 +--- a/tools/tiffcp.c ++++ b/tools/tiffcp.c +@@ -591,7 +591,7 @@ static copyFunc pickCopyFunc(TIFF*, TIFF*, uint16, uint16); + static int + tiffcp(TIFF* in, TIFF* out) + { +- uint16 bitspersample, samplesperpixel = 1; ++ uint16 bitspersample = 1, samplesperpixel = 1; + uint16 input_compression, input_photometric = PHOTOMETRIC_MINISBLACK; + copyFunc cf; + uint32 width, length; +@@ -1067,6 +1067,16 @@ DECLAREcpFunc(cpContig2SeparateByRow) + register uint32 n; + uint32 row; + tsample_t s; ++ uint16 bps = 0; ++ ++ (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps); ++ if( bps != 8 ) ++ { ++ TIFFError(TIFFFileName(in), ++ "Error, can only handle BitsPerSample=8 in %s", ++ "cpContig2SeparateByRow"); ++ return 0; ++ } + + inbuf = _TIFFmalloc(scanlinesizein); + outbuf = _TIFFmalloc(scanlinesizeout); +@@ -1120,6 +1130,16 @@ DECLAREcpFunc(cpSeparate2ContigByRow) + register uint32 n; + uint32 row; + tsample_t s; ++ uint16 bps = 0; ++ ++ (void) TIFFGetField(in, TIFFTAG_BITSPERSAMPLE, &bps); ++ if( bps != 8 ) ++ { ++ TIFFError(TIFFFileName(in), ++ "Error, can only handle BitsPerSample=8 in %s", ++ "cpSeparate2ContigByRow"); ++ return 0; ++ } + + inbuf = _TIFFmalloc(scanlinesizein); + outbuf = _TIFFmalloc(scanlinesizeout); +@@ -1784,7 +1804,7 @@ pickCopyFunc(TIFF* in, TIFF* out, uint16 bitspersample, uint16 samplesperpixel) + uint32 w, l, tw, tl; + int bychunk; + +- (void) TIFFGetField(in, TIFFTAG_PLANARCONFIG, &shortv); ++ (void) TIFFGetFieldDefaulted(in, TIFFTAG_PLANARCONFIG, &shortv); + if (shortv != config && bitspersample != 8 && samplesperpixel > 1) { + fprintf(stderr, + "%s: Cannot handle different planar configuration w/ bits/sample != 8\n", +-- +2.12.0 + |