aboutsummaryrefslogtreecommitdiff
path: root/gnu/packages/patches
diff options
context:
space:
mode:
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/libtiff-CVE-2016-5314.patch45
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) {