Fix ssl_get_prev_session overrun

[oweals/openssl.git] / ssl / ssl_sess.c

diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c
index fb4e8c52598f4d3f7ffc7151d427c00dccdd0a48..4c7f5d8b4e32d3e09690e8f313d62ddd08cbc95b 100644 (file)
--- a/ssl/ssl_sess.c
+++ b/ssl/ssl_sess.c
@@ -481,6 +481,11 @@ int ssl_get_prev_session(SSL *s, unsigned char *session_id, int len,
     if (len > SSL_MAX_SSL_SESSION_ID_LENGTH)
         goto err;
 
+    if (session_id + len > limit) {
+        fatal = 1;
+        goto err;
+    }
+
     if (len == 0)
         try_session_cache = 0;