diff options
author | CoprDistGit <infra@openeuler.org> | 2024-08-05 02:22:27 +0000 |
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committer | CoprDistGit <infra@openeuler.org> | 2024-08-05 02:22:27 +0000 |
commit | b4a18d52d8fb8c9a511877e995375cf9ab1dd9d1 (patch) | |
tree | a70b823a7441af65264e68f0b0c127515e49b83d /0001-flacparse-Avoid-integer-overflow-in-available-data-c.patch | |
parent | 29fa2f7f6cf5e2407aadc5b9446a6bdaf98e72a6 (diff) |
automatic import of gstreamer1-plugins-goodopeneuler24.03_LTS
Diffstat (limited to '0001-flacparse-Avoid-integer-overflow-in-available-data-c.patch')
-rw-r--r-- | 0001-flacparse-Avoid-integer-overflow-in-available-data-c.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/0001-flacparse-Avoid-integer-overflow-in-available-data-c.patch b/0001-flacparse-Avoid-integer-overflow-in-available-data-c.patch new file mode 100644 index 0000000..b20f286 --- /dev/null +++ b/0001-flacparse-Avoid-integer-overflow-in-available-data-c.patch @@ -0,0 +1,55 @@ +From cf36c771ea7f4e42603c2b5880432bc8c7d3dff1 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com> +Date: Tue, 13 Jun 2023 13:20:16 +0300 +Subject: [PATCH] flacparse: Avoid integer overflow in available data check for + image tags + +If the image length as stored in the file is some bogus integer then +adding it to the current byte readers position can overflow and wrongly +have the check for enough available data succeed. + +This then later can cause NULL pointer dereferences or out of bounds +reads/writes when actually reading the image data. + +Fixes ZDI-CAN-20775 +Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2661 + +Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4894> +--- + .../gst-plugins-good/gst/audioparsers/gstflacparse.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +diff --git a/subprojects/gst-plugins-good/gst/audioparsers/gstflacparse.c b/subprojects/gst-plugins-good/gst/audioparsers/gstflacparse.c +index a53b7ebc77..8ee450c65a 100644 +--- a/subprojects/gst-plugins-good/gst/audioparsers/gstflacparse.c ++++ b/subprojects/gst-plugins-good/gst/audioparsers/gstflacparse.c +@@ -1111,6 +1111,7 @@ gst_flac_parse_handle_picture (GstFlacParse * flacparse, GstBuffer * buffer) + GstMapInfo map; + guint32 img_len = 0, img_type = 0; + guint32 img_mimetype_len = 0, img_description_len = 0; ++ const guint8 *img_data; + + gst_buffer_map (buffer, &map, GST_MAP_READ); + gst_byte_reader_init (&reader, map.data, map.size); +@@ -1137,7 +1138,7 @@ gst_flac_parse_handle_picture (GstFlacParse * flacparse, GstBuffer * buffer) + if (!gst_byte_reader_get_uint32_be (&reader, &img_len)) + goto error; + +- if (gst_byte_reader_get_pos (&reader) + img_len > map.size) ++ if (!gst_byte_reader_get_data (&reader, img_len, &img_data)) + goto error; + + GST_INFO_OBJECT (flacparse, "Got image of %d bytes", img_len); +@@ -1146,8 +1147,7 @@ gst_flac_parse_handle_picture (GstFlacParse * flacparse, GstBuffer * buffer) + if (flacparse->tags == NULL) + flacparse->tags = gst_tag_list_new_empty (); + +- gst_tag_list_add_id3_image (flacparse->tags, +- map.data + gst_byte_reader_get_pos (&reader), img_len, img_type); ++ gst_tag_list_add_id3_image (flacparse->tags, img_data, img_len, img_type); + } + + gst_buffer_unmap (buffer, &map); +-- +2.43.0 + |