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messages: Check return value of ssh_buffer_unpack().

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CID: 1230356

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Aris Adamantiadis <aris@0xbadc0de.be>
This commit is contained in:
Andreas Schneider
2014-08-15 10:22:30 +02:00
parent 6961dd79ad
commit 19433dca00
1 changed files with 6 additions and 1 deletions
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7
src/messages.c
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@@ -860,6 +860,7 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_response){
uint32_t nanswers;
uint32_t i;
ssh_string tmp;
int rc;
ssh_message msg = NULL;
@@ -887,7 +888,11 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_response){
msg->auth_request.username = NULL;
#endif
ssh_buffer_unpack(packet, "d", &nanswers);
rc = ssh_buffer_unpack(packet, "d", &nanswers);
if (rc != SSH_OK) {
ssh_set_error_invalid(session);
goto error;
}
if (session->kbdint == NULL) {
SSH_LOG(SSH_LOG_PROTOCOL, "Warning: Got a keyboard-interactive "