gstreamer-plugins-base: fix CVE-2021-3522

Out-of-bounds read in ID3v2 tag parsing

reference:
https://gstreamer.freedesktop.org/security/sa-2021-0001.html
(From OE-Core rev: 8cab9d3dd226e854d40e12df497456adc3d3f81d)

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-base/CVE-2021-3522.patch b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-base/CVE-2021-3522.patch
new file mode 100644
index 0000000000..3717f0cf3a
--- /dev/null
+++ b/meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-base/CVE-2021-3522.patch
@@ -0,0 +1,36 @@
+From 067e759136904b82bba9c6d1d781c4408dfecfe6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= <tim@centricular.com>
+Date: Wed, 3 Mar 2021 01:08:25 +0000
+Subject: [PATCH] tag: id3v2: fix frame size check and potential invalid reads
+
+Check the right variable when checking if there's
+enough data left to read the frame size.
+
+Closes https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/876
+
+Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1066>
+
+Upstream-Status: Backport
+[https://gstreamer.freedesktop.org/security/sa-2021-0001.html]
+CVE:    CVE-2021-3522
+Signed-off-by: Minjae Kim <flowergom@gmail.com>
+---
+ gst-libs/gst/tag/id3v2frames.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gst-libs/gst/tag/id3v2frames.c b/gst-libs/gst/tag/id3v2frames.c
+index 8e9f782..f39659b 100644
+--- a/gst-libs/gst/tag/id3v2frames.c
++++ b/gst-libs/gst/tag/id3v2frames.c
+@@ -109,7 +109,7 @@ id3v2_parse_frame (ID3TagsWorking * work)
+ 
+   if (work->frame_flags & (ID3V2_FRAME_FORMAT_COMPRESSION |
+           ID3V2_FRAME_FORMAT_DATA_LENGTH_INDICATOR)) {
+-    if (work->hdr.frame_data_size <= 4)
++    if (frame_data_size <= 4)
+       return FALSE;
+     if (ID3V2_VER_MAJOR (work->hdr.version) == 3) {
+       work->parse_size = GST_READ_UINT32_BE (frame_data);
+-- 
+2.17.1
+