libtiff: fix CVE-2013-4244

cve description:
The LZW decompressor in the gif2tiff tool in libtiff 4.0.3 and earlier
allows context-dependent attackers to cause a denial of service
(out-of-bounds write and crash) or possibly execute arbitrary code via
a crafted GIF image.

http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-4244
(From OE-Core rev: 4eec8fae3f972a27bfb986066f5b3603599ebc25)

Signed-off-by: Baogen Shang <baogen.shang@windriver.com>
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/libtiff/files/libtiff-CVE-2013-4244.patch b/meta/recipes-multimedia/libtiff/files/libtiff-CVE-2013-4244.patch
new file mode 100644
index 0000000000..1a668307ae
--- /dev/null
+++ b/meta/recipes-multimedia/libtiff/files/libtiff-CVE-2013-4244.patch
@@ -0,0 +1,19 @@
+This patch comes from: https://github.com/vadz/libtiff/commit/ce6841d9e41d621ba23cf18b190ee6a23b2cc833
+
+Upstream-Status: Backport
+
+Signed-off-by: Baogen shang <baogen.shang@windriver.com>
+--- a/tools/gif2tiff.c  2013-12-17 16:46:02.160814995 +0800
++++ b/tools/gif2tiff.c  2013-12-17 16:52:25.140814949 +0800
+@@ -406,6 +406,11 @@
+         return 0;
+     }
+     if (oldcode == -1) {
++    if (code >= clear) {
++        fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear);
++        return 0;
++       }
++
+        *(*fill)++ = suffix[code];
+        firstchar = oldcode = code;
+        return 1;