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-rw-r--r--src/auth.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/auth.c b/src/auth.c
index f56bad34..387f2785 100644
--- a/src/auth.c
+++ b/src/auth.c
@@ -1684,9 +1684,10 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_request) {
nprompts = ntohl(nprompts);
ssh_log(session,SSH_LOG_PACKET,"kbdint: %d prompts",nprompts);
- if (nprompts > KBDINT_MAX_PROMPT) {
+ if (nprompts == 0 ||
+ nprompts > KBDINT_MAX_PROMPT) {
ssh_set_error(session, SSH_FATAL,
- "Too much prompt asked from server: %u (0x%.4x)",
+ "Wrong number of prompts requested by the server: %u (0x%.4x)",
nprompts, nprompts);
ssh_kbdint_free(session->kbdint);
session->kbdint = NULL;