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authorWenxiang Qian <leonwxqian@qq.com>2019-02-13 08:47:20 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2019-03-24 10:38:51 +0100
commite62abf9398633c6341e34e8f2eab781dd5bf040f (patch)
tree04ea151be033d999b3d000c107912c920b963ebc
parente2ae3419ff47b66a2a9a93c0cdf81155c70f2b3c (diff)
downloadffmpeg-e62abf9398633c6341e34e8f2eab781dd5bf040f.tar.gz
avformat/ftp: Fix Out-of-Bounds Access and Information Leak in ftp.c:393
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit a142ffdcaec06fcbf7d4b00dbb0e5ddfb9e3344d) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavformat/ftp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/ftp.c b/libavformat/ftp.c
index 9aa7a45629..7b3c8600e4 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;