ffmpeg | branch: master | Michael Niedermayer <michae...@gmx.at> | Sat Mar 14 21:24:54 2015 +0100| [8003816e1619e77d8de051883264aa090e0d78cc] | committer: Michael Niedermayer
avformat/mov: Check for string truncation in mov_open_dref() Signed-off-by: Michael Niedermayer <michae...@gmx.at> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8003816e1619e77d8de051883264aa090e0d78cc --- libavformat/mov.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 2129620..438cffb 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -2600,7 +2600,7 @@ static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref, /* try relative path, we do not try the absolute because it can leak information about our system to an attacker */ if (ref->nlvl_to > 0 && ref->nlvl_from > 0) { - char filename[1024]; + char filename[1025]; const char *src_path; int i, l; @@ -2630,6 +2630,8 @@ static int mov_open_dref(AVIOContext **pb, const char *src, MOVDref *ref, av_strlcat(filename, ref->path + l + 1, sizeof(filename)); + if (strlen(filename) + 1 == sizeof(filename)) + return AVERROR(ENOENT); if (!avio_open2(pb, filename, AVIO_FLAG_READ, int_cb, NULL)) return 0; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
