[FFmpeg-cvslog] avformat/libssh: check the user provided a password before trying to use it

James Almer git at videolan.org
Thu Jan 11 15:45:09 EET 2018


ffmpeg | branch: release/2.8 | James Almer <jamrial at gmail.com> | Sun Jun 11 14:17:30 2017 -0300| [a1433196b8d5954136cfbae1438bce601b3c0178] | committer: James Almer

avformat/libssh: check the user provided a password before trying to use it

Fixes ticket #6413

Reviewed-by: Michael Niedermayer <michael at niedermayer.cc>
Signed-off-by: James Almer <jamrial at gmail.com>
(cherry picked from commit 8ddb6820bd52df6ed616abc3d8be200b126aa8c1)

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a1433196b8d5954136cfbae1438bce601b3c0178
---

 libavformat/libssh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/libssh.c b/libavformat/libssh.c
index 3c056f874a..4cf7963e70 100644
--- a/libavformat/libssh.c
+++ b/libavformat/libssh.c
@@ -103,7 +103,7 @@ static av_cold int libssh_authentication(LIBSSHContext *libssh, const char *user
         }
     }
 
-    if (!authorized && (auth_methods & SSH_AUTH_METHOD_PASSWORD)) {
+    if (!authorized && password && (auth_methods & SSH_AUTH_METHOD_PASSWORD)) {
         if (ssh_userauth_password(libssh->session, NULL, password) == SSH_AUTH_SUCCESS) {
             av_log(libssh, AV_LOG_DEBUG, "Authentication successful with password.\n");
             authorized = 1;



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