From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 70DC94066A for ; Wed, 22 Dec 2021 12:48:15 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id B712D68B055; Wed, 22 Dec 2021 14:48:05 +0200 (EET) Received: from mout-p-102.mailbox.org (mout-p-102.mailbox.org [80.241.56.152]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 0E03968A59F for ; Wed, 22 Dec 2021 14:47:59 +0200 (EET) Received: from smtp1.mailbox.org (smtp1.mailbox.org [80.241.60.240]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-102.mailbox.org (Postfix) with ESMTPS id 4JJtQk2nHHzQkm3 for ; Wed, 22 Dec 2021 13:47:58 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de From: Gyan Doshi To: ffmpeg-devel@ffmpeg.org Date: Wed, 22 Dec 2021 18:17:28 +0530 Message-Id: <20211222124728.7300-2-ffmpeg@gyani.pro> In-Reply-To: <20211222124728.7300-1-ffmpeg@gyani.pro> References: <20211222124728.7300-1-ffmpeg@gyani.pro> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH v2 2/2] avformat/mov: validate box size for stts X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --- libavformat/mov.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavformat/mov.c b/libavformat/mov.c index 7de95b7ab0..1e44c74944 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2969,6 +2969,12 @@ static int mov_read_stts(MOVContext *c, AVIOContext *pb, MOVAtom atom) avio_rb24(pb); /* flags */ entries = avio_rb32(pb); + if (validate_box_size(c, atom, pb, avio_tell(pb)-8, 8+(int64_t)entries*8, 0)) { + av_log(c->fc, AV_LOG_ERROR, "Invalid or incomplete %s box in stream %d\n", + av_fourcc2str(atom.type), c->fc->nb_streams-1); + return AVERROR_INVALIDDATA; + } + av_log(c->fc, AV_LOG_TRACE, "track[%u].stts.entries = %u\n", c->fc->nb_streams-1, entries); -- 2.33.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".