aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--libssh/crypt.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/libssh/crypt.c b/libssh/crypt.c
index f84a96f7..1d4af3e1 100644
--- a/libssh/crypt.c
+++ b/libssh/crypt.c
@@ -59,7 +59,10 @@ uint32_t packet_decrypt_len(SSH_SESSION *session, char *crypted){
int packet_decrypt(SSH_SESSION *session, void *data,uint32_t len) {
struct crypto_struct *crypto = session->current_crypto->in_cipher;
char *out = NULL;
-
+ if(len % session->current_crypto->in_cipher->blocksize != 0){
+ ssh_set_error(session, SSH_FATAL, "Cryptographic functions must be set on at least one blocksize (received %d)",len);
+ return SSH_ERROR;
+ }
out = malloc(len);
if (out == NULL) {
return -1;
@@ -99,7 +102,10 @@ unsigned char *packet_encrypt(SSH_SESSION *session, void *data, uint32_t len) {
if (!session->current_crypto) {
return NULL; /* nothing to do here */
}
-
+ if(len % session->current_crypto->in_cipher->blocksize != 0){
+ ssh_set_error(session, SSH_FATAL, "Cryptographic functions must be set on at least one blocksize (received %d)",len);
+ return NULL;
+ }
out = malloc(len);
if (out == NULL) {
return NULL;