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-rw-r--r--lib/smtp.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/smtp.c b/lib/smtp.c
index 0db3c1e1c..65220b0f6 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -714,7 +714,7 @@ static CURLcode smtp_state_ehlo_resp(struct connectdata *conn, int smtpcode,
result = CURLE_REMOTE_ACCESS_DENIED;
}
}
- else {
+ else if(len >= 4) {
line += 4;
len -= 4;
@@ -785,6 +785,10 @@ static CURLcode smtp_state_ehlo_resp(struct connectdata *conn, int smtpcode,
result = smtp_perform_authentication(conn);
}
}
+ else {
+ failf(data, "Unexpectedly short EHLO response");
+ result = CURLE_WEIRD_SERVER_REPLY;
+ }
return result;
}