mingw-openssl/SOURCES/openssl-1.0.2k-long-hello.patch

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2019-05-07 13:10:53 +00:00
diff -up openssl-1.0.2k/ssl/s3_srvr.c.long-hello openssl-1.0.2k/ssl/s3_srvr.c
--- openssl-1.0.2k/ssl/s3_srvr.c.long-hello 2017-03-09 17:59:26.000000000 +0100
+++ openssl-1.0.2k/ssl/s3_srvr.c 2017-03-30 09:11:35.639338753 +0200
@@ -899,6 +899,23 @@ int ssl3_send_hello_request(SSL *s)
return ssl_do_write(s);
}
+/*
+ * Maximum size (excluding the Handshake header) of a ClientHello message,
+ * calculated as follows:
+ *
+ * 2 + # client_version
+ * 32 + # only valid length for random
+ * 1 + # length of session_id
+ * 32 + # maximum size for session_id
+ * 2 + # length of cipher suites
+ * 2^16-2 + # maximum length of cipher suites array
+ * 1 + # length of compression_methods
+ * 2^8-1 + # maximum length of compression methods
+ * 2 + # length of extensions
+ * 2^16-1 # maximum length of extensions
+ */
+#define CLIENT_HELLO_MAX_LENGTH 131396
+
int ssl3_get_client_hello(SSL *s)
{
int i, j, ok, al = SSL_AD_INTERNAL_ERROR, ret = -1, cookie_valid = 0;
@@ -930,7 +947,7 @@ int ssl3_get_client_hello(SSL *s)
SSL3_ST_SR_CLNT_HELLO_B,
SSL3_ST_SR_CLNT_HELLO_C,
SSL3_MT_CLIENT_HELLO,
- SSL3_RT_MAX_PLAIN_LENGTH, &ok);
+ CLIENT_HELLO_MAX_LENGTH, &ok);
if (!ok)
return ((int)n);