diff options
Diffstat (limited to 'gnu/packages/patches/libtiff-CVE-2016-5314.patch')
| -rw-r--r-- | gnu/packages/patches/libtiff-CVE-2016-5314.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gnu/packages/patches/libtiff-CVE-2016-5314.patch b/gnu/packages/patches/libtiff-CVE-2016-5314.patch new file mode 100644 index 0000000000..e5380f8639 --- /dev/null +++ b/gnu/packages/patches/libtiff-CVE-2016-5314.patch @@ -0,0 +1,45 @@ +Fix CVE-2016-5314. + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5314 +bugzilla.maptools.org/show_bug.cgi?id=2554 + +Patch extracted from upstream CVS repo with: +$ cvs diff -u -r1.43 -r1.44 libtiff/tif_pixarlog.c + +Index: libtiff/tif_pixarlog.c +=================================================================== +RCS file: /cvs/maptools/cvsroot/libtiff/libtiff/tif_pixarlog.c,v +retrieving revision 1.43 +retrieving revision 1.44 +diff -u -r1.43 -r1.44 +--- libtiff/libtiff/tif_pixarlog.c 27 Dec 2015 20:14:11 -0000 1.43 ++++ libtiff/libtiff/tif_pixarlog.c 28 Jun 2016 15:12:19 -0000 1.44 +@@ -459,6 +459,7 @@ + typedef struct { + TIFFPredictorState predict; + z_stream stream; ++ tmsize_t tbuf_size; /* only set/used on reading for now */ + uint16 *tbuf; + uint16 stride; + int state; +@@ -694,6 +695,7 @@ + sp->tbuf = (uint16 *) _TIFFmalloc(tbuf_size); + if (sp->tbuf == NULL) + return (0); ++ sp->tbuf_size = tbuf_size; + if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) + sp->user_datafmt = PixarLogGuessDataFmt(td); + if (sp->user_datafmt == PIXARLOGDATAFMT_UNKNOWN) { +@@ -783,6 +785,12 @@ + TIFFErrorExt(tif->tif_clientdata, module, "ZLib cannot deal with buffers this size"); + return (0); + } ++ /* Check that we will not fill more than what was allocated */ ++ if (sp->stream.avail_out > sp->tbuf_size) ++ { ++ TIFFErrorExt(tif->tif_clientdata, module, "sp->stream.avail_out > sp->tbuf_size"); ++ return (0); ++ } + do { + int state = inflate(&sp->stream, Z_PARTIAL_FLUSH); + if (state == Z_STREAM_END) { |