File ffmpeg-CVE-2020-20896.patch of Package ffmpeg.27460
From dd01947397b98e94c3f2a79d5820aaf4594f4d3b Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Tue, 15 Oct 2019 11:38:23 -0300
Subject: [PATCH] avformat/latmenc: abort if no extradata is available
Fixes ticket #8273.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
---
libavformat/latmenc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavformat/latmenc.c b/libavformat/latmenc.c
index db867ebf1a..5ae677f5da 100644
--- a/libavformat/latmenc.c
+++ b/libavformat/latmenc.c
@@ -176,7 +176,8 @@ static int latm_write_packet(AVFormatContext *s, AVPacket *pkt)
if (ret < 0)
return ret;
memcpy(par->extradata, side_data, side_data_size);
- }
+ } else
+ return AVERROR_INVALIDDATA;
}
}
--
2.33.0