From 02518ba07fe6ec7295ac9f786965de72a02b6a4e Mon Sep 17 00:00:00 2001 From: Wenxiang Qian Date: Wed, 13 Feb 2019 08:47:20 +0100 Subject: [PATCH] avformat/ftp: Fix Out-of-Bounds Access and Information Leak in ftp.c:393 Signed-off-by: Michael Niedermayer (cherry picked from commit a142ffdcaec06fcbf7d4b00dbb0e5ddfb9e3344d) Signed-off-by: Michael Niedermayer --- libavformat/ftp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/ftp.c b/libavformat/ftp.c index 35bfbd47ab..ba64abb429 100644 --- a/libavformat/ftp.c +++ b/libavformat/ftp.c @@ -389,7 +389,7 @@ static int ftp_file_size(FTPContext *s) static const int size_codes[] = {213, 0}; snprintf(command, sizeof(command), "SIZE %s\r\n", s->path); - if (ftp_send_command(s, command, size_codes, &res) == 213 && res) { + if (ftp_send_command(s, command, size_codes, &res) == 213 && res && strlen(res) > 4) { s->filesize = strtoll(&res[4], NULL, 10); } else { s->filesize = -1;