1 files changed, 114 insertions, 0 deletions

diff --git a/meta/recipes-support/curl/curl/CVE-2022-27776.patch b/meta/recipes-support/curl/curl/CVE-2022-27776.patch
new file mode 100644
index 0000000000..1a13df2d95
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2022-27776.patch
@@ -0,0 +1,114 @@
+From 6e659993952aa5f90f48864be84a1bbb047fc258 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Mon, 25 Apr 2022 13:05:40 +0200
+Subject: [PATCH] http: avoid auth/cookie on redirects same host diff port
+
+CVE-2022-27776
+
+Reported-by: Harry Sintonen
+Bug: https://curl.se/docs/CVE-2022-27776.html
+Closes #8749
+---
+ lib/http.c    | 34 ++++++++++++++++++++++------------
+ lib/urldata.h | 16 +++++++++-------
+ 2 files changed, 31 insertions(+), 19 deletions(-)
+
+CVE: CVE-2022-27776
+Upstream-Status: Backport [https://github.com/curl/curl/commit/6e659993952aa5f90f48864be84a1bbb047fc258.patch]
+Comment: Refreshed patch
+Signed-off-by: Sana.Kazi <Sana.Kazi@kpit.com>
+
+diff --git a/lib/http.c b/lib/http.c
+index ce79fc4e31c8..f0476f3b9272 100644
+--- a/lib/http.c
++++ b/lib/http.c
+@@ -731,6 +731,21 @@
+   return CURLE_OK;
+ }
+ 
++/*
++ * allow_auth_to_host() tells if autentication, cookies or other "sensitive
++ * data" can (still) be sent to this host.
++ */
++static bool allow_auth_to_host(struct Curl_easy *data)
++{
++  struct connectdata *conn = data->conn;
++  return (!data->state.this_is_a_follow ||
++          data->set.allow_auth_to_other_hosts ||
++          (data->state.first_host &&
++           strcasecompare(data->state.first_host, conn->host.name) &&
++           (data->state.first_remote_port == conn->remote_port) &&
++           (data->state.first_remote_protocol == conn->handler->protocol)));
++}
++
+ /**
+  * Curl_http_output_auth() setups the authentication headers for the
+  * host/proxy and the correct authentication
+@@ -799,15 +799,12 @@
+        with it */
+     authproxy->done = TRUE;
+ 
+-  /* To prevent the user+password to get sent to other than the original
+-     host due to a location-follow, we do some weirdo checks here */
+-  if(!data->state.this_is_a_follow ||
+-     conn->bits.netrc ||
+-     !data->state.first_host ||
+-     data->set.allow_auth_to_other_hosts ||
+-     strcasecompare(data->state.first_host, conn->host.name)) {
++  /* To prevent the user+password to get sent to other than the original host
++     due to a location-follow */
++  if(allow_auth_to_host(data)
++     || conn->bits.netrc
++    )
+     result = output_auth_headers(conn, authhost, request, path, FALSE);
+-  }
+   else
+     authhost->done = TRUE;
+ 
+@@ -1879,10 +1891,7 @@
+                    checkprefix("Cookie:", compare)) &&
+                   /* be careful of sending this potentially sensitive header to
+                      other hosts */
+-                  (data->state.this_is_a_follow &&
+-                   data->state.first_host &&
+-                   !data->set.allow_auth_to_other_hosts &&
+-                   !strcasecompare(data->state.first_host, conn->host.name)))
++                  !allow_auth_to_host(data))                     
+             ;
+           else {
+             result = Curl_add_bufferf(&req_buffer, "%s\r\n", compare);
+@@ -2065,6 +2074,7 @@
+       return CURLE_OUT_OF_MEMORY;
+ 
+     data->state.first_remote_port = conn->remote_port;
++    data->state.first_remote_protocol = conn->handler->protocol;    
+   }
+ 
+   if((conn->handler->protocol&(PROTO_FAMILY_HTTP|CURLPROTO_FTP)) &&
+diff --git a/lib/urldata.h b/lib/urldata.h
+index 1d89b8d7fa68..ef2174d9e727 100644
+--- a/lib/urldata.h
++++ b/lib/urldata.h
+@@ -1342,13 +1342,15 @@
+   char *ulbuf; /* allocated upload buffer or NULL */
+   curl_off_t current_speed;  /* the ProgressShow() function sets this,
+                                 bytes / second */
+-  char *first_host; /* host name of the first (not followed) request.
+-                       if set, this should be the host name that we will
+-                       sent authorization to, no else. Used to make Location:
+-                       following not keep sending user+password... This is
+-                       strdup() data.
+-                    */
+-  int first_remote_port; /* remote port of the first (not followed) request */
++
++  /* host name, port number and protocol of the first (not followed) request.
++     if set, this should be the host name that we will sent authorization to,
++     no else. Used to make Location: following not keep sending user+password.
++     This is strdup()ed data. */
++  char *first_host;
++  int first_remote_port;
++  unsigned int first_remote_protocol;
++
+   struct curl_ssl_session *session; /* array of 'max_ssl_sessions' size */
+   long sessionage;                  /* number of the most recent session */
+   unsigned int tempcount; /* number of entries in use in tempwrite, 0 - 3 */