virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

mmvideo: check frame dimensions

Browse Source 
The frame size must be set by the caller and each dimension must be a
multiple of 2.

CC: libav-stable@libav.org
Bug-ID: CVE-2014-8543
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
This commit is contained in:
Anton Khirnov 2014-12-14 21:01:59 +01:00
parent 88626e5af8
commit 17ba719d9b
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libavcodec/mmvideo.c
View File

@ -61,6 +61,13 @@ static av_cold int mm_decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_PAL8; avctx->pix_fmt = AV_PIX_FMT_PAL8;
if (!avctx->width || !avctx->height ||
(avctx->width & 1) || (avctx->height & 1)) {
av_log(avctx, AV_LOG_ERROR, "Invalid video dimensions: %dx%d\n",
avctx->width, avctx->height);
return AVERROR(EINVAL);
}
s->frame = av_frame_alloc(); s->frame = av_frame_alloc();
if (!s->frame) if (!s->frame)
return AVERROR(ENOMEM); return AVERROR(ENOMEM);