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libgxps: CVE-2018-10733 ; CVE-2018-10767

This commit is contained in:
Nathan Owens 2019-01-04 17:04:58 -06:00 committed by maxice8
parent 25f913e9c0
commit a411f8be11
3 changed files with 177 additions and 1 deletions
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148
srcpkgs/libgxps/patches/CVE-2018-10733.patch Normal file
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@ -0,0 +1,148 @@
Sources:
https://git.gnome.org/browse/libgxps/commit/?id=b458226e162fe1ffe7acb4230c114a52ada5131b
https://git.gnome.org/browse/libgxps/commit/?id=133fe2a96e020d4ca65c6f64fb28a404050ebbfd
From 133fe2a96e020d4ca65c6f64fb28a404050ebbfd Mon Sep 17 00:00:00 2001
From: Carlos Garcia Campos <carlosgc@gnome.org>
Date: Sat, 5 May 2018 12:02:36 +0200
Subject: [PATCH] gxps-archive: Handle errors returned by archive_read_data
---
libgxps/gxps-archive.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git libgxps/gxps-archive.c libgxps/gxps-archive.c
index 346ba73..1bae729 100644
--- libgxps/gxps-archive.c
+++ libgxps/gxps-archive.c
@@ -520,6 +520,13 @@ gxps_archive_input_stream_read (GInputStream *stream,
return -1;
bytes_read = archive_read_data (istream->zip->archive, buffer, count);
+ if (bytes_read < 0) {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ g_io_error_from_errno (archive_errno (istream->zip->archive)),
+ archive_error_string (istream->zip->archive));
+ return -1;
+ }
if (bytes_read == 0 && istream->is_interleaved && !gxps_archive_input_stream_is_last_piece (istream)) {
/* Read next piece */
gxps_archive_input_stream_next_piece (istream);
--
2.18.1
From b458226e162fe1ffe7acb4230c114a52ada5131b Mon Sep 17 00:00:00 2001
From: Carlos Garcia Campos <carlosgc@gnome.org>
Date: Sat, 5 May 2018 12:01:24 +0200
Subject: [PATCH] gxps-archive: Ensure gxps_archive_read_entry() fills the
GError in case of failure
And fix the callers to not overwrite the GError.
---
libgxps/gxps-archive.c | 15 +++++++++++----
libgxps/gxps-fonts.c | 17 +++++------------
libgxps/gxps-images.c | 17 ++++++-----------
3 files changed, 22 insertions(+), 27 deletions(-)
diff --git libgxps/gxps-archive.c libgxps/gxps-archive.c
index e763773..346ba73 100644
--- libgxps/gxps-archive.c
+++ libgxps/gxps-archive.c
@@ -406,9 +406,13 @@ gxps_archive_read_entry (GXPSArchive *archive,
gboolean retval;
stream = gxps_archive_open (archive, path);
- if (!stream)
- /* TODO: Error */
+ if (!stream) {
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_NOT_FOUND,
+ "The entry '%s' was not found in archive", path);
return FALSE;
+ }
entry_size = archive_entry_size (GXPS_ARCHIVE_INPUT_STREAM (stream)->entry);
if (entry_size <= 0) {
@@ -423,7 +427,7 @@ gxps_archive_read_entry (GXPSArchive *archive,
*buffer = g_malloc (buffer_size);
do {
bytes = g_input_stream_read (stream, &buf, BUFFER_SIZE, NULL, error);
- if (*error != NULL) {
+ if (bytes < 0) {
g_free (*buffer);
g_object_unref (stream);
@@ -441,7 +445,10 @@ gxps_archive_read_entry (GXPSArchive *archive,
g_object_unref (stream);
if (*bytes_read == 0) {
- /* TODO: Error */
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_DATA,
+ "The entry '%s' is empty in archive", path);
g_free (*buffer);
return FALSE;
}
diff --git libgxps/gxps-fonts.c libgxps/gxps-fonts.c
index 882157d..8d02ffc 100644
--- libgxps/gxps-fonts.c
+++ libgxps/gxps-fonts.c
@@ -220,19 +220,12 @@ gxps_fonts_new_font_face (GXPSArchive *zip,
cairo_font_face_t *font_face;
guchar *font_data;
gsize font_data_len;
- gboolean res;
- res = gxps_archive_read_entry (zip, font_uri,
- &font_data, &font_data_len,
- error);
- if (!res) {
- g_set_error (error,
- GXPS_ERROR,
- GXPS_ERROR_SOURCE_NOT_FOUND,
- "Font source %s not found in archive",
- font_uri);
- return NULL;
- }
+ if (!gxps_archive_read_entry (zip, font_uri,
+ &font_data, &font_data_len,
+ error)) {
+ return NULL;
+ }
ft_face.font_data = font_data;
ft_face.font_data_len = (gssize)font_data_len;
diff --git libgxps/gxps-images.c libgxps/gxps-images.c
index 4dcf9e2..50f899f 100644
--- libgxps/gxps-images.c
+++ libgxps/gxps-images.c
@@ -742,17 +742,12 @@ gxps_images_create_from_tiff (GXPSArchive *zip,
guchar *data;
guchar *p;
- if (!gxps_archive_read_entry (zip, image_uri,
- &buffer.buffer,
- &buffer.buffer_len,
- error)) {
- g_set_error (error,
- GXPS_ERROR,
- GXPS_ERROR_SOURCE_NOT_FOUND,
- "Image source %s not found in archive",
- image_uri);
- return NULL;
- }
+ if (!gxps_archive_read_entry (zip, image_uri,
+ &buffer.buffer,
+ &buffer.buffer_len,
+ error)) {
+ return NULL;
+ }
buffer.pos = 0;
--
2.18.1

28
srcpkgs/libgxps/patches/CVE-2018-10767.patch Normal file
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@ -0,0 +1,28 @@
Source:
https://gitlab.gnome.org/GNOME/libgxps/commit/123dd99c6a1ae2ef6fcb5547e51fa58e8c954b51
From 123dd99c6a1ae2ef6fcb5547e51fa58e8c954b51 Mon Sep 17 00:00:00 2001
From: Carlos Garcia Campos <carlosgc@gnome.org>
Date: Fri, 8 Dec 2017 11:11:38 +0100
Subject: [PATCH] gxps-images: fix integer overflow in png decoder
---
libgxps/gxps-images.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git libgxps/gxps-images.c libgxps/gxps-images.c
index 98c7052..19cb1c0 100644
--- libgxps/gxps-images.c
+++ libgxps/gxps-images.c
@@ -286,7 +286,7 @@ gxps_images_create_from_png (GXPSArchive *zip,
}
stride = cairo_format_stride_for_width (format, png_width);
- if (stride < 0) {
+ if (stride < 0 || png_height >= INT_MAX / stride) {
fill_png_error (error, image_uri, NULL);
g_object_unref (stream);
png_destroy_read_struct (&png, &info, NULL);
--
2.18.1

2
srcpkgs/libgxps/template
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@ -1,7 +1,7 @@
# Template file for 'libgxps'
pkgname=libgxps
version=0.3.0
revision=1
revision=2
build_style=meson
configure_args="-Denable-test=false -Ddisable-introspection=$(vopt_if gir false true)"
hostmakedepends="pkg-config $(vopt_if gir gobject-introspection)"