Update to 1.10.2

- Remove obsolete patches
This commit is contained in:
Wim Taymans 2016-12-05 09:33:32 +01:00
parent a7f338d7c1
commit 6e40ce1622
7 changed files with 8 additions and 1430 deletions

1
.gitignore vendored
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@ -43,3 +43,4 @@
/gst-plugins-good-1.9.90.tar.xz /gst-plugins-good-1.9.90.tar.xz
/gst-plugins-good-1.10.0.tar.xz /gst-plugins-good-1.10.0.tar.xz
/gst-plugins-good-1.10.1.tar.xz /gst-plugins-good-1.10.1.tar.xz
/gst-plugins-good-1.10.2.tar.xz

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@ -1,304 +0,0 @@
From 6b6c3bec094d7b31456be257d9c575bdfd044861 Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Tue, 22 Nov 2016 19:05:00 +1100
Subject: [PATCH 1/4] flxdec: add some write bounds checking
Without checking the bounds of the frame we are writing into, we can
write off the end of the destination buffer.
https://scarybeastsecurity.blogspot.dk/2016/11/0day-exploit-advancing-exploitation.html
https://bugzilla.gnome.org/show_bug.cgi?id=774834
---
gst/flx/gstflxdec.c | 116 +++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 91 insertions(+), 25 deletions(-)
diff --git a/gst/flx/gstflxdec.c b/gst/flx/gstflxdec.c
index 604be2f..d51a8e6 100644
--- a/gst/flx/gstflxdec.c
+++ b/gst/flx/gstflxdec.c
@@ -74,9 +74,9 @@ static gboolean gst_flxdec_src_query_handler (GstPad * pad, GstObject * parent,
GstQuery * query);
static void flx_decode_color (GstFlxDec *, guchar *, guchar *, gint);
-static void flx_decode_brun (GstFlxDec *, guchar *, guchar *);
-static void flx_decode_delta_fli (GstFlxDec *, guchar *, guchar *);
-static void flx_decode_delta_flc (GstFlxDec *, guchar *, guchar *);
+static gboolean flx_decode_brun (GstFlxDec *, guchar *, guchar *);
+static gboolean flx_decode_delta_fli (GstFlxDec *, guchar *, guchar *);
+static gboolean flx_decode_delta_flc (GstFlxDec *, guchar *, guchar *);
#define rndalign(off) ((off) + ((off) & 1))
@@ -203,13 +203,14 @@ gst_flxdec_sink_event_handler (GstPad * pad, GstObject * parent,
return ret;
}
-static void
+static gboolean
flx_decode_chunks (GstFlxDec * flxdec, gulong count, guchar * data,
guchar * dest)
{
FlxFrameChunk *hdr;
+ gboolean ret = TRUE;
- g_return_if_fail (data != NULL);
+ g_return_val_if_fail (data != NULL, FALSE);
while (count--) {
hdr = (FlxFrameChunk *) data;
@@ -228,17 +229,17 @@ flx_decode_chunks (GstFlxDec * flxdec, gulong count, guchar * data,
break;
case FLX_BRUN:
- flx_decode_brun (flxdec, data, dest);
+ ret = flx_decode_brun (flxdec, data, dest);
data += rndalign (hdr->size) - FlxFrameChunkSize;
break;
case FLX_LC:
- flx_decode_delta_fli (flxdec, data, dest);
+ ret = flx_decode_delta_fli (flxdec, data, dest);
data += rndalign (hdr->size) - FlxFrameChunkSize;
break;
case FLX_SS2:
- flx_decode_delta_flc (flxdec, data, dest);
+ ret = flx_decode_delta_flc (flxdec, data, dest);
data += rndalign (hdr->size) - FlxFrameChunkSize;
break;
@@ -256,7 +257,12 @@ flx_decode_chunks (GstFlxDec * flxdec, gulong count, guchar * data,
data += rndalign (hdr->size) - FlxFrameChunkSize;
break;
}
+
+ if (!ret)
+ break;
}
+
+ return ret;
}
@@ -289,13 +295,13 @@ flx_decode_color (GstFlxDec * flxdec, guchar * data, guchar * dest, gint scale)
}
}
-static void
+static gboolean
flx_decode_brun (GstFlxDec * flxdec, guchar * data, guchar * dest)
{
gulong count, lines, row;
guchar x;
- g_return_if_fail (flxdec != NULL);
+ g_return_val_if_fail (flxdec != NULL, FALSE);
lines = flxdec->hdr.height;
while (lines--) {
@@ -313,12 +319,21 @@ flx_decode_brun (GstFlxDec * flxdec, guchar * data, guchar * dest)
if (count > 0x7f) {
/* literal run */
count = 0x100 - count;
+ if ((glong) row - count < 0) {
+ GST_ERROR_OBJECT (flxdec, "Invalid BRUN packet detected.");
+ return FALSE;
+ }
row -= count;
while (count--)
*dest++ = *data++;
} else {
+ if ((glong) row - count < 0) {
+ GST_ERROR_OBJECT (flxdec, "Invalid BRUN packet detected.");
+ return FALSE;
+ }
+
/* replicate run */
row -= count;
x = *data++;
@@ -328,22 +343,28 @@ flx_decode_brun (GstFlxDec * flxdec, guchar * data, guchar * dest)
}
}
}
+
+ return TRUE;
}
-static void
+static gboolean
flx_decode_delta_fli (GstFlxDec * flxdec, guchar * data, guchar * dest)
{
gulong count, packets, lines, start_line;
guchar *start_p, x;
- g_return_if_fail (flxdec != NULL);
- g_return_if_fail (flxdec->delta_data != NULL);
+ g_return_val_if_fail (flxdec != NULL, FALSE);
+ g_return_val_if_fail (flxdec->delta_data != NULL, FALSE);
/* use last frame for delta */
memcpy (dest, flxdec->delta_data, flxdec->size);
start_line = (data[0] + (data[1] << 8));
lines = (data[2] + (data[3] << 8));
+ if (start_line + lines > flxdec->hdr.height) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLI packet detected. too many lines.");
+ return FALSE;
+ }
data += 4;
/* start position of delta */
@@ -356,7 +377,8 @@ flx_decode_delta_fli (GstFlxDec * flxdec, guchar * data, guchar * dest)
while (packets--) {
/* skip count */
- dest += *data++;
+ guchar skip = *data++;
+ dest += skip;
/* RLE count */
count = *data++;
@@ -364,12 +386,24 @@ flx_decode_delta_fli (GstFlxDec * flxdec, guchar * data, guchar * dest)
if (count > 0x7f) {
/* literal run */
count = 0x100 - count;
- x = *data++;
+ if (skip + count > flxdec->hdr.width) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLI packet detected. "
+ "line too long.");
+ return FALSE;
+ }
+
+ x = *data++;
while (count--)
*dest++ = x;
} else {
+ if (skip + count > flxdec->hdr.width) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLI packet detected. "
+ "line too long.");
+ return FALSE;
+ }
+
/* replicate run */
while (count--)
*dest++ = *data++;
@@ -378,21 +412,27 @@ flx_decode_delta_fli (GstFlxDec * flxdec, guchar * data, guchar * dest)
start_p += flxdec->hdr.width;
dest = start_p;
}
+
+ return TRUE;
}
-static void
+static gboolean
flx_decode_delta_flc (GstFlxDec * flxdec, guchar * data, guchar * dest)
{
gulong count, lines, start_l, opcode;
guchar *start_p;
- g_return_if_fail (flxdec != NULL);
- g_return_if_fail (flxdec->delta_data != NULL);
+ g_return_val_if_fail (flxdec != NULL, FALSE);
+ g_return_val_if_fail (flxdec->delta_data != NULL, FALSE);
/* use last frame for delta */
memcpy (dest, flxdec->delta_data, flxdec->size);
lines = (data[0] + (data[1] << 8));
+ if (lines > flxdec->hdr.height) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLC packet detected. too many lines.");
+ return FALSE;
+ }
data += 2;
start_p = dest;
@@ -405,9 +445,15 @@ flx_decode_delta_flc (GstFlxDec * flxdec, guchar * data, guchar * dest)
while ((opcode = (data[0] + (data[1] << 8))) & 0xc000) {
data += 2;
if ((opcode & 0xc000) == 0xc000) {
- /* skip count */
- start_l += (0x10000 - opcode);
- dest += flxdec->hdr.width * (0x10000 - opcode);
+ /* line skip count */
+ gulong skip = (0x10000 - opcode);
+ if (skip > flxdec->hdr.height) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLC packet detected. "
+ "skip line count too big.");
+ return FALSE;
+ }
+ start_l += skip;
+ dest += flxdec->hdr.width * skip;
} else {
/* last pixel */
dest += flxdec->hdr.width;
@@ -419,7 +465,8 @@ flx_decode_delta_flc (GstFlxDec * flxdec, guchar * data, guchar * dest)
/* last opcode is the packet count */
while (opcode--) {
/* skip count */
- dest += *data++;
+ guchar skip = *data++;
+ dest += skip;
/* RLE count */
count = *data++;
@@ -427,12 +474,25 @@ flx_decode_delta_flc (GstFlxDec * flxdec, guchar * data, guchar * dest)
if (count > 0x7f) {
/* replicate word run */
count = 0x100 - count;
+
+ if (skip + count > flxdec->hdr.width) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLC packet detected. "
+ "line too long.");
+ return FALSE;
+ }
+
while (count--) {
*dest++ = data[0];
*dest++ = data[1];
}
data += 2;
} else {
+ if (skip + count > flxdec->hdr.width) {
+ GST_ERROR_OBJECT (flxdec, "Invalid FLC packet detected. "
+ "line too long.");
+ return FALSE;
+ }
+
/* literal word run */
while (count--) {
*dest++ = *data++;
@@ -442,6 +502,8 @@ flx_decode_delta_flc (GstFlxDec * flxdec, guchar * data, guchar * dest)
}
lines--;
}
+
+ return TRUE;
}
static GstFlowReturn
@@ -571,9 +633,13 @@ gst_flxdec_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
out = gst_buffer_new_and_alloc (flxdec->size * 4);
/* decode chunks */
- flx_decode_chunks (flxdec,
- ((FlxFrameType *) chunk)->chunks,
- chunk + FlxFrameTypeSize, flxdec->frame_data);
+ if (!flx_decode_chunks (flxdec,
+ ((FlxFrameType *) chunk)->chunks,
+ chunk + FlxFrameTypeSize, flxdec->frame_data)) {
+ GST_ELEMENT_ERROR (flxdec, STREAM, DECODE,
+ ("%s", "Could not decode chunk"), NULL);
+ return GST_FLOW_ERROR;
+ }
/* save copy of the current frame for possible delta. */
memcpy (flxdec->delta_data, flxdec->frame_data, flxdec->size);
--
2.7.4

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@ -1,49 +0,0 @@
From 35304ee4890e70cf004744c5f44a05fea46fea95 Mon Sep 17 00:00:00 2001
From: Matthew Waters <matthew@centricular.com>
Date: Tue, 22 Nov 2016 23:46:00 +1100
Subject: [PATCH 2/4] flxdec: fix some warnings comparing unsigned < 0
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
bf43f44fcfada5ec4a3ce60cb374340486fe9fac was comparing an unsigned
expression to be < 0 which was always false.
gstflxdec.c: In function flx_decode_brun:
gstflxdec.c:322:33: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
if ((glong) row - count < 0) {
^
gstflxdec.c:332:33: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
if ((glong) row - count < 0) {
^
https://bugzilla.gnome.org/show_bug.cgi?id=774834
---
gst/flx/gstflxdec.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gst/flx/gstflxdec.c b/gst/flx/gstflxdec.c
index d51a8e6..e675c99 100644
--- a/gst/flx/gstflxdec.c
+++ b/gst/flx/gstflxdec.c
@@ -319,7 +319,7 @@ flx_decode_brun (GstFlxDec * flxdec, guchar * data, guchar * dest)
if (count > 0x7f) {
/* literal run */
count = 0x100 - count;
- if ((glong) row - count < 0) {
+ if ((glong) row - (glong) count < 0) {
GST_ERROR_OBJECT (flxdec, "Invalid BRUN packet detected.");
return FALSE;
}
@@ -329,7 +329,7 @@ flx_decode_brun (GstFlxDec * flxdec, guchar * data, guchar * dest)
*dest++ = *data++;
} else {
- if ((glong) row - count < 0) {
+ if ((glong) row - (glong) count < 0) {
GST_ERROR_OBJECT (flxdec, "Invalid BRUN packet detected.");
return FALSE;
}
--
2.7.4

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@ -1,28 +0,0 @@
From c51de4f2c7beecc5193952013e7a489017ae137d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Wed, 23 Nov 2016 11:20:49 +0200
Subject: [PATCH 3/4] flxdec: Don't unref() parent in the chain function
We don't own the reference here, it is owned by the caller and given to
us for the scope of this function. Leftover mistake from 0.10 porting.
https://bugzilla.gnome.org/show_bug.cgi?id=774897
---
gst/flx/gstflxdec.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/gst/flx/gstflxdec.c b/gst/flx/gstflxdec.c
index e675c99..a237976 100644
--- a/gst/flx/gstflxdec.c
+++ b/gst/flx/gstflxdec.c
@@ -677,7 +677,6 @@ wrong_type:
{
GST_ELEMENT_ERROR (flxdec, STREAM, WRONG_TYPE, (NULL),
("not a flx file (type %x)", flxh->type));
- gst_object_unref (flxdec);
return GST_FLOW_ERROR;
}
}
--
2.7.4

File diff suppressed because it is too large Load Diff

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@ -12,8 +12,8 @@
#global shortcommit %(c=%{gitcommit}; echo ${c:0:5}) #global shortcommit %(c=%{gitcommit}; echo ${c:0:5})
Name: gstreamer1-plugins-good Name: gstreamer1-plugins-good
Version: 1.10.1 Version: 1.10.2
Release: 2%{?gitcommit:.git%{shortcommit}}%{?dist} Release: 1%{?gitcommit:.git%{shortcommit}}%{?dist}
Summary: GStreamer plugins with good code and licensing Summary: GStreamer plugins with good code and licensing
License: LGPLv2+ License: LGPLv2+
@ -26,10 +26,6 @@ Source0: gst-plugins-good-%{version}.tar.xz
%else %else
Source0: http://gstreamer.freedesktop.org/src/gst-plugins-good/gst-plugins-good-%{version}.tar.xz Source0: http://gstreamer.freedesktop.org/src/gst-plugins-good/gst-plugins-good-%{version}.tar.xz
%endif %endif
Patch1: 0001-flxdec-add-some-write-bounds-checking.patch
Patch2: 0002-flxdec-fix-some-warnings-comparing-unsigned-0.patch
Patch3: 0003-flxdec-Don-t-unref-parent-in-the-chain-function.patch
Patch4: 0004-flxdec-rewrite-logic-based-on-GstByteReader-Writer.patch
BuildRequires: gstreamer1-devel >= %{version} BuildRequires: gstreamer1-devel >= %{version}
BuildRequires: gstreamer1-plugins-base-devel >= %{version} BuildRequires: gstreamer1-plugins-base-devel >= %{version}
@ -102,10 +98,6 @@ to be installed.
%prep %prep
%setup -q -n gst-plugins-good-%{version} %setup -q -n gst-plugins-good-%{version}
%patch1 -p1
%patch2 -p1
%patch3 -p1
%patch4 -p1
%build %build
%configure --disable-silent-rules --disable-fatal-warnings \ %configure --disable-silent-rules --disable-fatal-warnings \
@ -277,6 +269,10 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
%changelog %changelog
* Mon Dec 05 2016 Wim Taymans <wtaymans@redhat.com> - 1.10.2-1
- Update to 1.10.2
- Remove obsolete patches
* Mon Nov 28 2016 Wim Taymans <wtaymans@redhat.com> - 1.10.1-2 * Mon Nov 28 2016 Wim Taymans <wtaymans@redhat.com> - 1.10.1-2
- Add fix for gstreamer FLIC decoder vulnerability - Add fix for gstreamer FLIC decoder vulnerability

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@ -1 +1 @@
7d24b1412d49fa7bab763b35f4640abd gst-plugins-good-1.10.1.tar.xz 65c4ff9d406c3ea9383b4d38a6504349 gst-plugins-good-1.10.2.tar.xz