francis.wang
4c86c082a2
Combine poky (Yocto scarthgap), meta-openembedded (scarthgap), and meta-openwrt into a single repository. Components: - poky/ Yocto core framework (BitBake + OE-Core) - meta-openembedded/ Community layers (meta-oe, meta-python, meta-networking) - meta-openwrt/ OpenWrt customization layer - setup-env.sh One-click build environment setup - README.md Project documentation
41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
From b80803943388050cb870c95934fc52feeffb94ac Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
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Date: Sat, 3 May 2025 09:43:32 +0300
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Subject: [PATCH] qtdemux: Check if enough bytes are available for each stsd
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entry
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There must be at least 8 bytes for the length / fourcc of each entry. After
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reading those, the length is already validated against the remaining available
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bytes.
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Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4407
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Fixes CVE-2025-47219
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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9137>
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CVE: CVE-2025-47219
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Upstream-Status: Backport [https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/b80803943388050cb870c95934fc52feeffb94ac]
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Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
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---
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gst/isomp4/qtdemux.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/gst/isomp4/qtdemux.c b/gst/isomp4/qtdemux.c
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index 10b21a6..b40aa81 100644
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--- a/gst/isomp4/qtdemux.c
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+++ b/gst/isomp4/qtdemux.c
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@@ -11399,6 +11399,10 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
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gchar *codec = NULL;
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QtDemuxStreamStsdEntry *entry = &stream->stsd_entries[stsd_index];
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+ /* needs at least length and fourcc */
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+ if (remaining_stsd_len < 8)
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+ goto corrupt_file;
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+
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/* and that entry should fit within stsd */
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len = QT_UINT32 (stsd_entry_data);
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if (len > remaining_stsd_len)
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--
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2.50.1
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