media-libs/jbig2dec: Revision bump for bug 616464

Package-Manager: Portage-2.3.6, Repoman-2.3.2

3 files changed, 89 insertions, 0 deletions

diff --git a/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7885.patch b/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7885.patch
new file mode 100644
index 000000000000..e8ffccd45344
--- /dev/null
+++ b/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7885.patch
@@ -0,0 +1,29 @@
+From b184e783702246e154294326d03d9abda669fcfa Mon Sep 17 00:00:00 2001
+From: Shailesh Mistry <shailesh.mistry@hotmail.co.uk>
+Date: Wed, 3 May 2017 22:06:01 +0100
+Subject: [PATCH] Bug 697703: Prevent integer overflow vulnerability.
+
+Add extra check for the offset being greater than the size
+of the image and hence reading off the end of the buffer.
+
+Thank you to Dai Ge for finding this issue and suggesting a patch.
+---
+ jbig2dec/jbig2_symbol_dict.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/jbig2dec/jbig2_symbol_dict.c b/jbig2dec/jbig2_symbol_dict.c
+index 4acaba9d0..36225cb1f 100644
+--- a/jbig2_symbol_dict.c
++++ b/jbig2_symbol_dict.c
+@@ -629,7 +629,7 @@ jbig2_decode_symbol_dict(Jbig2Ctx *ctx,
+                 byte *dst = image->data;
+ 
+                 /* SumatraPDF: prevent read access violation */
+-                if (size - jbig2_huffman_offset(hs) < image->height * stride) {
++                if ((size - jbig2_huffman_offset(hs) < image->height * stride) || (size < jbig2_huffman_offset(hs))) {
+                     jbig2_error(ctx, JBIG2_SEVERITY_FATAL, segment->number, "not enough data for decoding (%d/%d)", image->height * stride,
+                                 size - jbig2_huffman_offset(hs));
+                     jbig2_image_release(ctx, image);
+-- 
+2.13.1
+
diff --git a/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7975.patch b/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7975.patch
new file mode 100644
index 000000000000..d5e62762b9a5
--- /dev/null
+++ b/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7975.patch
@@ -0,0 +1,31 @@
+From 5e57e483298dae8b8d4ec9aab37a526736ac2e97 Mon Sep 17 00:00:00 2001
+From: Shailesh Mistry <shailesh.mistry@hotmail.co.uk>
+Date: Wed, 26 Apr 2017 22:12:14 +0100
+Subject: [PATCH] Bug 697693: Prevent SEGV due to integer overflow.
+
+While building a Huffman table, the start and end points were susceptible
+to integer overflow.
+
+Thank you to Jiaqi for finding this issue and suggesting a patch.
+---
+ jbig2dec/jbig2_huffman.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/jbig2dec/jbig2_huffman.c b/jbig2dec/jbig2_huffman.c
+index 511e46170..b4189a12c 100644
+--- a/jbig2_huffman.c
++++ b/jbig2_huffman.c
+@@ -421,8 +421,8 @@ jbig2_build_huffman_table(Jbig2Ctx *ctx, const Jbig2HuffmanParams *params)
+ 
+             if (PREFLEN == CURLEN) {
+                 int RANGELEN = lines[CURTEMP].RANGELEN;
+-                int start_j = CURCODE << shift;
+-                int end_j = (CURCODE + 1) << shift;
++                uint32_t start_j = CURCODE << shift;
++                uint32_t end_j = (CURCODE + 1) << shift;
+                 byte eflags = 0;
+ 
+                 if (end_j > max_j) {
+-- 
+2.13.1
+
diff --git a/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7976.patch b/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7976.patch
new file mode 100644
index 000000000000..c6dbd182c616
--- /dev/null
+++ b/media-libs/jbig2dec/files/jbig2dec-0.13-CVE-2017-7976.patch
@@ -0,0 +1,29 @@
+From ed6c5133a1004ce8d38f1b44de85a7186feda95e Mon Sep 17 00:00:00 2001
+From: Shailesh Mistry <shailesh.mistry@hotmail.co.uk>
+Date: Wed, 10 May 2017 17:50:39 +0100
+Subject: [PATCH] Bug 697683: Bounds check before reading from image source
+ data.
+
+Add extra check to prevent reading off the end of the image source
+data buffer.
+
+Thank you to Dai Ge for finding this issue and suggesting a patch.
+---
+ jbig2dec/jbig2_image.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+Backported dilfridge@g.o
+
+diff -ruN jbig2dec-0.13.orig/jbig2_image.c jbig2dec-0.13/jbig2_image.c
+--- jbig2dec-0.13.orig/jbig2_image.c	2017-06-10 01:41:16.207939489 +0200
++++ jbig2dec-0.13/jbig2_image.c	2017-06-10 01:46:28.009952461 +0200
+@@ -256,7 +256,8 @@
+     /* general OR case */
+     s = ss;
+     d = dd = dst->data + y * dst->stride + leftbyte;
+-    if (d < dst->data || leftbyte > dst->stride || h * dst->stride < 0 || d - leftbyte + h * dst->stride > dst->data + dst->height * dst->stride) {
++    if (d < dst->data || leftbyte > dst->stride || d - leftbyte + h * dst->stride > dst->data + dst->height * dst->stride ||
++        s - leftbyte + (h - 1) * src->stride + rightbyte > src->data + src->height * src->stride) {
+         return jbig2_error(ctx, JBIG2_SEVERITY_FATAL, -1, "preventing heap overflow in jbig2_image_compose");
+     }
+     if (leftbyte == rightbyte) {