Fix ssl_get_prev_session overrun

[openssl.git] / ssl / ssl_sess.c

diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c
index a213ea90dfe927cdc27b1bd3153a78773d301b60..3d0f95090df482941a6c736d53fe0c2a32176e0b 100644 (file)
--- a/ssl/ssl_sess.c
+++ b/ssl/ssl_sess.c
@@ -442,6 +442,11 @@ 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;