diff options
Diffstat (limited to 'gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch')
| -rw-r--r-- | gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch b/gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch new file mode 100644 index 0000000000..fda4045504 --- /dev/null +++ b/gnu/packages/patches/libtiff-CVE-2014-8128-pt4.patch @@ -0,0 +1,77 @@ +Copied from Debian + +Picked from CVE: diff -u -r1.14 -r1.15 +http://bugzilla.maptools.org/show_bug.cgi?id=2501 + +Author: Even Rouault <even.rouault@spatialys.com> + +--- tiff-4.0.3.orig/tools/tiffdither.c ++++ tiff-4.0.3/tools/tiffdither.c +@@ -39,6 +39,7 @@ + #endif + + #include "tiffio.h" ++#include "tiffiop.h" + + #define streq(a,b) (strcmp(a,b) == 0) + #define strneq(a,b,n) (strncmp(a,b,n) == 0) +@@ -56,7 +57,7 @@ static void usage(void); + * Floyd-Steinberg error propragation with threshold. + * This code is stolen from tiffmedian. + */ +-static void ++static int + fsdither(TIFF* in, TIFF* out) + { + unsigned char *outline, *inputline, *inptr; +@@ -68,14 +69,19 @@ fsdither(TIFF* in, TIFF* out) + int lastline, lastpixel; + int bit; + tsize_t outlinesize; ++ int errcode = 0; + + imax = imagelength - 1; + jmax = imagewidth - 1; + inputline = (unsigned char *)_TIFFmalloc(TIFFScanlineSize(in)); +- thisline = (short *)_TIFFmalloc(imagewidth * sizeof (short)); +- nextline = (short *)_TIFFmalloc(imagewidth * sizeof (short)); ++ thisline = (short *)_TIFFmalloc(TIFFSafeMultiply(tmsize_t, imagewidth, sizeof (short))); ++ nextline = (short *)_TIFFmalloc(TIFFSafeMultiply(tmsize_t, imagewidth, sizeof (short))); + outlinesize = TIFFScanlineSize(out); + outline = (unsigned char *) _TIFFmalloc(outlinesize); ++ if (! (inputline && thisline && nextline && outline)) { ++ fprintf(stderr, "Out of memory.\n"); ++ goto skip_on_error; ++ } + + /* + * Get first line +@@ -93,7 +99,7 @@ fsdither(TIFF* in, TIFF* out) + nextline = tmpptr; + lastline = (i == imax); + if (TIFFReadScanline(in, inputline, i, 0) <= 0) +- break; ++ goto skip_on_error; + inptr = inputline; + nextptr = nextline; + for (j = 0; j < imagewidth; ++j) +@@ -131,13 +137,18 @@ fsdither(TIFF* in, TIFF* out) + } + } + if (TIFFWriteScanline(out, outline, i-1, 0) < 0) +- break; ++ goto skip_on_error; + } ++ goto exit_label; ++ + skip_on_error: ++ errcode = 1; ++ exit_label: + _TIFFfree(inputline); + _TIFFfree(thisline); + _TIFFfree(nextline); + _TIFFfree(outline); ++ return errcode; + } + + static uint16 compression = COMPRESSION_PACKBITS; |