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ffmpeg: fix CVE-2024-35369

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In FFmpeg version n6.1.1, specifically within the avcodec/speexdec.c module,
a potential security vulnerability exists due to insufficient validation of
certain parameters when parsing Speex codec extradata. This vulnerability
could lead to integer overflow conditions, potentially resulting in undefined
behavior or crashes during the decoding process.

(From OE-Core rev: 3efef582892a5a9286041837098b80aa59d1b688)

Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Archana Polampalli
2025-02-21 06:03:06 +00:00
committed by Steve Sakoman
parent 7b6ce37e5d
commit 89037ea118
2 changed files with 39 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2024-35369.patch Normal file
View File

@@ -0,0 +1,38 @@
From 0895ef0d6d6406ee6cd158fc4d47d80f201b8e9c Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Sat, 17 Feb 2024 09:45:57 -0300
Subject: [PATCH] avcodec/speexdec: further check for sane frame_size
values
Prevent potential integer overflows.
Signed-off-by: James Almer <jamrial@gmail.com>
CVE: CVE-2024-35369
Upstream-Status: Backport [https://github.com/ffmpeg/ffmpeg/commit/0895ef0d6d6406ee6cd158fc4d47d80f201b8e9c]
Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
---
libavcodec/speexdec.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavcodec/speexdec.c b/libavcodec/speexdec.c
index 5b016df..f1f739a 100644
--- a/libavcodec/speexdec.c
+++ b/libavcodec/speexdec.c
@@ -1419,9 +1419,10 @@ static int parse_speex_extradata(AVCodecContext *avctx,
return AVERROR_INVALIDDATA;
s->bitrate = bytestream_get_le32(&buf);
s->frame_size = bytestream_get_le32(&buf);
- if (s->frame_size < NB_FRAME_SIZE << (s->mode > 0))
+ if (s->frame_size < NB_FRAME_SIZE << (s->mode > 0) ||
+ s->frame_size > INT32_MAX >> (s->mode > 0))
return AVERROR_INVALIDDATA;
- s->frame_size *= 1 + (s->mode > 0);
+ s->frame_size <<= (s->mode > 0);
s->vbr = bytestream_get_le32(&buf);
s->frames_per_packet = bytestream_get_le32(&buf);
if (s->frames_per_packet <= 0 ||
--
2.40.0

1
meta/recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb
View File

@@ -49,6 +49,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
file://CVE-2024-36617.patch \
file://CVE-2024-36618.patch \
file://CVE-2024-28661.patch \
file://CVE-2024-35369.patch \
"
SRC_URI[sha256sum] = "ef2efae259ce80a240de48ec85ecb062cecca26e4352ffb3fda562c21a93007b"