File _service:tar_scm:CVE-2021-38165.patch of Package lynx

File _service:tar_scm:CVE-2021-38165.patch of Package lynx (Revision f93f0b857d62203842b79f609bc746b9)

Currently displaying revision f93f0b857d62203842b79f609bc746b9 , Show latest

Description: Fix CVE-2021-38165
 CVE-2021-38165: If Lynx is given an HTTPS URL which included username
 and password, e.g. https://username:password@www.example.org/,
 username and password were sent over the wire in clear text if the
 TLS 1.2 Server Name Indication (SNI) extension was used.
 .
 This patch is extracted from upstream's patch from 2.9.0dev.8 to
 2.9.0dev.9 to fix this issue.
Origin: https://invisible-mirror.net/archives/lynx/patches/lynx2.9.0dev.9.patch.gz
Author: Thomas E. Dickey <dickey@invisible-island.net>
Reviewed-By: Axel Beckert <abe@debian.org>
Bug-Debian: https://bugs.debian.org/991971
Bug: https://lists.nongnu.org/archive/html/lynx-dev/2021-08/msg00000.html
Bug: https://lists.nongnu.org/archive/html/lynx-dev/2021-08/msg00002.html

--- a/WWW/Library/Implementation/HTTP.c
+++ b/WWW/Library/Implementation/HTTP.c
@@ -762,6 +762,23 @@
 }
 #endif
 
+/*
+ * Remove user/password, if any, from the given host-string.
+ */
+#ifdef USE_SSL
+static char *StripUserAuthents(char *host)
+{
+    char *p = strchr(host, '@');
+
+    if (p != NULL) {
+	char *q = host;
+
+	while ((*q++ = *++p) != '\0') ;
+    }
+    return host;
+}
+#endif
+
 /*		Load Document from HTTP Server			HTLoadHTTP()
  *		==============================
  *
@@ -957,6 +974,7 @@
 	/* get host we're connecting to */
 	ssl_host = HTParse(url, "", PARSE_HOST);
 	ssl_host = StripIpv6Brackets(ssl_host);
+	ssl_host = StripUserAuthents(ssl_host);
 #if defined(USE_GNUTLS_FUNCS)
 	ret = gnutls_server_name_set(handle->gnutls_state,
 				     GNUTLS_NAME_DNS,