File curl-CVE-2022-27782.patch of Package curl

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File curl-CVE-2022-27782.patch of Package curl (Revision cc453aad165bdec74c948b8a529563e7)

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From c3f8e4e2b4a334697e7ce3168495f20a46b398bd Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 3 May 2022 09:31:11 +0200
Subject: [PATCH 1/2] tls: check more TLS details for connection reuse

CVE-2022-27782

Reported-by: Harry Sintonen
Bug: https://curl.se/docs/CVE-2022-27782.html
---
 lib/setopt.c       | 29 +++++++++++++++++------------
 lib/url.c          | 23 ++++++++++++++++-------
 lib/urldata.h      | 13 +++++++------
 lib/vtls/gtls.c    | 32 +++++++++++++++++---------------
 lib/vtls/openssl.c | 10 +++++-----
 lib/vtls/vtls.c    | 20 ++++++++++++++++++++
 6 files changed, 82 insertions(+), 45 deletions(-)

Index: curl-7.79.1/lib/setopt.c
===================================================================
--- curl-7.79.1.orig/lib/setopt.c
+++ curl-7.79.1/lib/setopt.c
@@ -2311,6 +2311,7 @@ CURLcode Curl_vsetopt(struct Curl_easy *
 
   case CURLOPT_SSL_OPTIONS:
     arg = va_arg(param, long);
+    data->set.ssl.primary.ssl_options = (unsigned char)(arg & 0xff);
     data->set.ssl.enable_beast = !!(arg & CURLSSLOPT_ALLOW_BEAST);
     data->set.ssl.no_revoke = !!(arg & CURLSSLOPT_NO_REVOKE);
     data->set.ssl.no_partialchain = !!(arg & CURLSSLOPT_NO_PARTIALCHAIN);
@@ -2324,6 +2325,7 @@ CURLcode Curl_vsetopt(struct Curl_easy *
 #ifndef CURL_DISABLE_PROXY
   case CURLOPT_PROXY_SSL_OPTIONS:
     arg = va_arg(param, long);
+    data->set.proxy_ssl.primary.ssl_options = (unsigned char)(arg & 0xff);
     data->set.proxy_ssl.enable_beast = !!(arg & CURLSSLOPT_ALLOW_BEAST);
     data->set.proxy_ssl.no_revoke = !!(arg & CURLSSLOPT_NO_REVOKE);
     data->set.proxy_ssl.no_partialchain = !!(arg & CURLSSLOPT_NO_PARTIALCHAIN);
@@ -2740,49 +2742,52 @@ CURLcode Curl_vsetopt(struct Curl_easy *
   case CURLOPT_TLSAUTH_USERNAME:
     result = Curl_setstropt(&data->set.str[STRING_TLSAUTH_USERNAME],
                             va_arg(param, char *));
-    if(data->set.str[STRING_TLSAUTH_USERNAME] && !data->set.ssl.authtype)
-      data->set.ssl.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
+    if(data->set.str[STRING_TLSAUTH_USERNAME] &&
+       !data->set.ssl.primary.authtype)
+      data->set.ssl.primary.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
     break;
   case CURLOPT_PROXY_TLSAUTH_USERNAME:
     result = Curl_setstropt(&data->set.str[STRING_TLSAUTH_USERNAME_PROXY],
                             va_arg(param, char *));
 #ifndef CURL_DISABLE_PROXY
     if(data->set.str[STRING_TLSAUTH_USERNAME_PROXY] &&
-       !data->set.proxy_ssl.authtype)
-      data->set.proxy_ssl.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
+       !data->set.proxy_ssl.primary.authtype)
+      data->set.proxy_ssl.primary.authtype = CURL_TLSAUTH_SRP; /* default to
+                                                                  SRP */
 #endif
     break;
   case CURLOPT_TLSAUTH_PASSWORD:
     result = Curl_setstropt(&data->set.str[STRING_TLSAUTH_PASSWORD],
                             va_arg(param, char *));
-    if(data->set.str[STRING_TLSAUTH_USERNAME] && !data->set.ssl.authtype)
-      data->set.ssl.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
+    if(data->set.str[STRING_TLSAUTH_USERNAME] &&
+       !data->set.ssl.primary.authtype)
+      data->set.ssl.primary.authtype = CURL_TLSAUTH_SRP; /* default */
     break;
   case CURLOPT_PROXY_TLSAUTH_PASSWORD:
     result = Curl_setstropt(&data->set.str[STRING_TLSAUTH_PASSWORD_PROXY],
                             va_arg(param, char *));
 #ifndef CURL_DISABLE_PROXY
     if(data->set.str[STRING_TLSAUTH_USERNAME_PROXY] &&
-       !data->set.proxy_ssl.authtype)
-      data->set.proxy_ssl.authtype = CURL_TLSAUTH_SRP; /* default to SRP */
+       !data->set.proxy_ssl.primary.authtype)
+      data->set.proxy_ssl.primary.authtype = CURL_TLSAUTH_SRP; /* default */
 #endif
     break;
   case CURLOPT_TLSAUTH_TYPE:
     argptr = va_arg(param, char *);
     if(!argptr ||
        strncasecompare(argptr, "SRP", strlen("SRP")))
-      data->set.ssl.authtype = CURL_TLSAUTH_SRP;
+      data->set.ssl.primary.authtype = CURL_TLSAUTH_SRP;
     else
-      data->set.ssl.authtype = CURL_TLSAUTH_NONE;
+      data->set.ssl.primary.authtype = CURL_TLSAUTH_NONE;
     break;
 #ifndef CURL_DISABLE_PROXY
   case CURLOPT_PROXY_TLSAUTH_TYPE:
     argptr = va_arg(param, char *);
     if(!argptr ||
        strncasecompare(argptr, "SRP", strlen("SRP")))
-      data->set.proxy_ssl.authtype = CURL_TLSAUTH_SRP;
+      data->set.proxy_ssl.primary.authtype = CURL_TLSAUTH_SRP;
     else
-      data->set.proxy_ssl.authtype = CURL_TLSAUTH_NONE;
+      data->set.proxy_ssl.primary.authtype = CURL_TLSAUTH_NONE;
     break;
 #endif
 #endif
Index: curl-7.79.1/lib/url.c
===================================================================
--- curl-7.79.1.orig/lib/url.c
+++ curl-7.79.1/lib/url.c
@@ -547,7 +547,7 @@ CURLcode Curl_init_userdefined(struct Cu
   set->ssl.primary.verifypeer = TRUE;
   set->ssl.primary.verifyhost = TRUE;
 #ifdef USE_TLS_SRP
-  set->ssl.authtype = CURL_TLSAUTH_NONE;
+  set->ssl.primary.authtype = CURL_TLSAUTH_NONE;
 #endif
   set->ssh_auth_types = CURLSSH_AUTH_DEFAULT; /* defaults to any auth
                                                       type */
@@ -1089,6 +1089,12 @@ static void prune_dead_connections(struc
   }
 }
 
+static bool ssh_config_matches(struct connectdata *one,
+                               struct connectdata *two)
+{
+  return (Curl_safecmp(one->proto.sshc.rsa, two->proto.sshc.rsa) &&
+          Curl_safecmp(one->proto.sshc.rsa_pub, two->proto.sshc.rsa_pub));
+}
 /*
  * Given one filled in connection struct (named needle), this function should
  * detect if there already is one that has all the significant details
@@ -1348,6 +1354,11 @@ ConnectionExists(struct Curl_easy *data,
          (data->state.httpwant < CURL_HTTP_VERSION_2_0))
         continue;
 
+      if(get_protocol_family(needle->handler) == PROTO_FAMILY_SSH) {
+        if(!ssh_config_matches(needle, check))
+          continue;
+      }
+
       if((needle->handler->flags&PROTOPT_SSL)
 #ifndef CURL_DISABLE_PROXY
          || !needle->bits.httpproxy || needle->bits.tunnel_proxy
@@ -1748,11 +1759,17 @@ static struct connectdata *allocate_conn
   conn->ssl_config.verifystatus = data->set.ssl.primary.verifystatus;
   conn->ssl_config.verifypeer = data->set.ssl.primary.verifypeer;
   conn->ssl_config.verifyhost = data->set.ssl.primary.verifyhost;
+  conn->ssl_config.ssl_options = data->set.ssl.primary.ssl_options;
+#ifdef USE_TLS_SRP
+#endif
 #ifndef CURL_DISABLE_PROXY
   conn->proxy_ssl_config.verifystatus =
     data->set.proxy_ssl.primary.verifystatus;
   conn->proxy_ssl_config.verifypeer = data->set.proxy_ssl.primary.verifypeer;
   conn->proxy_ssl_config.verifyhost = data->set.proxy_ssl.primary.verifyhost;
+  conn->proxy_ssl_config.ssl_options = data->set.proxy_ssl.primary.ssl_options;
+#ifdef USE_TLS_SRP
+#endif
 #endif
   conn->ip_version = data->set.ipver;
   conn->bits.connect_only = data->set.connect_only;
@@ -3813,7 +3830,8 @@ static CURLcode create_conn(struct Curl_
     data->set.str[STRING_SSL_ISSUERCERT_PROXY];
   data->set.proxy_ssl.primary.issuercert_blob =
     data->set.blobs[BLOB_SSL_ISSUERCERT_PROXY];
-  data->set.proxy_ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE_PROXY];
+  data->set.proxy_ssl.primary.CRLfile =
+    data->set.str[STRING_SSL_CRLFILE_PROXY];
   data->set.proxy_ssl.cert_type = data->set.str[STRING_CERT_TYPE_PROXY];
   data->set.proxy_ssl.key = data->set.str[STRING_KEY_PROXY];
   data->set.proxy_ssl.key_type = data->set.str[STRING_KEY_TYPE_PROXY];
@@ -3821,18 +3839,20 @@ static CURLcode create_conn(struct Curl_
   data->set.proxy_ssl.primary.clientcert = data->set.str[STRING_CERT_PROXY];
   data->set.proxy_ssl.key_blob = data->set.blobs[BLOB_KEY_PROXY];
 #endif
-  data->set.ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE];
+  data->set.ssl.primary.CRLfile = data->set.str[STRING_SSL_CRLFILE];
   data->set.ssl.cert_type = data->set.str[STRING_CERT_TYPE];
   data->set.ssl.key = data->set.str[STRING_KEY];
   data->set.ssl.key_type = data->set.str[STRING_KEY_TYPE];
   data->set.ssl.key_passwd = data->set.str[STRING_KEY_PASSWD];
   data->set.ssl.primary.clientcert = data->set.str[STRING_CERT];
 #ifdef USE_TLS_SRP
-  data->set.ssl.username = data->set.str[STRING_TLSAUTH_USERNAME];
-  data->set.ssl.password = data->set.str[STRING_TLSAUTH_PASSWORD];
+  data->set.ssl.primary.username = data->set.str[STRING_TLSAUTH_USERNAME];
+  data->set.ssl.primary.password = data->set.str[STRING_TLSAUTH_PASSWORD];
 #ifndef CURL_DISABLE_PROXY
-  data->set.proxy_ssl.username = data->set.str[STRING_TLSAUTH_USERNAME_PROXY];
-  data->set.proxy_ssl.password = data->set.str[STRING_TLSAUTH_PASSWORD_PROXY];
+  data->set.proxy_ssl.primary.username =
+    data->set.str[STRING_TLSAUTH_USERNAME_PROXY];
+  data->set.proxy_ssl.primary.password =
+    data->set.str[STRING_TLSAUTH_PASSWORD_PROXY];
 #endif
 #endif
   data->set.ssl.key_blob = data->set.blobs[BLOB_KEY];
Index: curl-7.79.1/lib/urldata.h
===================================================================
--- curl-7.79.1.orig/lib/urldata.h
+++ curl-7.79.1/lib/urldata.h
@@ -253,10 +253,17 @@ struct ssl_primary_config {
   char *cipher_list;     /* list of ciphers to use */
   char *cipher_list13;   /* list of TLS 1.3 cipher suites to use */
   char *pinned_key;
+  char *CRLfile;         /* CRL to check certificate revocation */
   struct curl_blob *cert_blob;
   struct curl_blob *ca_info_blob;
   struct curl_blob *issuercert_blob;
+#ifdef USE_TLS_SRP
+  char *username; /* TLS username (for, e.g., SRP) */
+  char *password; /* TLS password (for, e.g., SRP) */
+  enum CURL_TLSAUTH authtype; /* TLS authentication type (default SRP) */
+#endif
   char *curves;          /* list of curves to use */
+  unsigned char ssl_options;  /* the CURLOPT_SSL_OPTIONS bitmask */
   BIT(verifypeer);       /* set TRUE if this is desired */
   BIT(verifyhost);       /* set TRUE if CN/SAN must match hostname */
   BIT(verifystatus);     /* set TRUE if certificate status must be checked */
@@ -266,7 +273,6 @@ struct ssl_primary_config {
 struct ssl_config_data {
   struct ssl_primary_config primary;
   long certverifyresult; /* result from the certificate verification */
-  char *CRLfile;   /* CRL to check certificate revocation */
   curl_ssl_ctx_callback fsslctx; /* function to initialize ssl ctx */
   void *fsslctxp;        /* parameter for call back */
   char *cert_type; /* format for certificate (default: PEM)*/
@@ -274,11 +280,6 @@ struct ssl_config_data {
   struct curl_blob *key_blob;
   char *key_type; /* format for private key (default: PEM) */
   char *key_passwd; /* plain text private key password */
-#ifdef USE_TLS_SRP
-  char *username; /* TLS username (for, e.g., SRP) */
-  char *password; /* TLS password (for, e.g., SRP) */
-  enum CURL_TLSAUTH authtype; /* TLS authentication type (default SRP) */
-#endif
   BIT(certinfo);     /* gather lots of certificate info */
   BIT(falsestart);
   BIT(enable_beast); /* allow this flaw for interoperability's sake*/
Index: curl-7.79.1/lib/vtls/gtls.c
===================================================================
--- curl-7.79.1.orig/lib/vtls/gtls.c
+++ curl-7.79.1/lib/vtls/gtls.c
@@ -431,8 +431,8 @@ gtls_connect_step1(struct Curl_easy *dat
   }
 
 #ifdef HAVE_GNUTLS_SRP
-  if(SSL_SET_OPTION(authtype) == CURL_TLSAUTH_SRP) {
-    infof(data, "Using TLS-SRP username: %s", SSL_SET_OPTION(username));
+  if((SSL_SET_OPTION(primary.authtype) == CURL_TLSAUTH_SRP))
+    infof(data, "Using TLS-SRP username: %s", SSL_SET_OPTION(primary.username));
 
     rc = gnutls_srp_allocate_client_credentials(
            &backend->srp_client_cred);
@@ -443,8 +443,8 @@ gtls_connect_step1(struct Curl_easy *dat
     }
 
     rc = gnutls_srp_set_client_credentials(backend->srp_client_cred,
-                                           SSL_SET_OPTION(username),
-                                           SSL_SET_OPTION(password));
+                                           SSL_SET_OPTION(primary.username),
+                                           SSL_SET_OPTION(primary.password));
     if(rc != GNUTLS_E_SUCCESS) {
       failf(data, "gnutls_srp_set_client_cred() failed: %s",
             gnutls_strerror(rc));
@@ -500,19 +500,19 @@ gtls_connect_step1(struct Curl_easy *dat
   }
 #endif
 
-  if(SSL_SET_OPTION(CRLfile)) {
+  if(SSL_SET_OPTION(primary.CRLfile)) {
     /* set the CRL list file */
     rc = gnutls_certificate_set_x509_crl_file(backend->cred,
-                                              SSL_SET_OPTION(CRLfile),
+                                              SSL_SET_OPTION(primary.CRLfile),
                                               GNUTLS_X509_FMT_PEM);
     if(rc < 0) {
       failf(data, "error reading crl file %s (%s)",
-            SSL_SET_OPTION(CRLfile), gnutls_strerror(rc));
+            SSL_SET_OPTION(primary.CRLfile), gnutls_strerror(rc));
       return CURLE_SSL_CRL_BADFILE;
     }
     else
       infof(data, "found %d CRL in %s",
-            rc, SSL_SET_OPTION(CRLfile));
+            rc, SSL_SET_OPTION(primary.CRLfile));
   }
 
   /* Initialize TLS session as a client */
@@ -585,7 +585,7 @@ gtls_connect_step1(struct Curl_easy *dat
 #ifdef HAVE_GNUTLS_SRP
   /* Only add SRP to the cipher list if SRP is requested. Otherwise
    * GnuTLS will disable TLS 1.3 support. */
-  if(SSL_SET_OPTION(authtype) == CURL_TLSAUTH_SRP) {
+  if(SSL_SET_OPTION(primary.authtype) == CURL_TLSAUTH_SRP) {
     size_t len = strlen(prioritylist);
 
     char *prioritysrp = malloc(len + sizeof(GNUTLS_SRP) + 1);
@@ -677,7 +677,7 @@ gtls_connect_step1(struct Curl_easy *dat
 
 #ifdef HAVE_GNUTLS_SRP
   /* put the credentials to the current session */
-  if(SSL_SET_OPTION(authtype) == CURL_TLSAUTH_SRP) {
+  if(SSL_SET_OPTION(primary.authtype) == CURL_TLSAUTH_SRP) {
     rc = gnutls_credentials_set(session, GNUTLS_CRD_SRP,
                                 backend->srp_client_cred);
     if(rc != GNUTLS_E_SUCCESS) {
@@ -858,8 +858,8 @@ gtls_connect_step3(struct Curl_easy *dat
        SSL_CONN_CONFIG(verifyhost) ||
        SSL_CONN_CONFIG(issuercert)) {
 #ifdef HAVE_GNUTLS_SRP
-      if(SSL_SET_OPTION(authtype) == CURL_TLSAUTH_SRP
-         && SSL_SET_OPTION(username) != NULL
+      if(SSL_SET_OPTION(primary.authtype) == CURL_TLSAUTH_SRP
+         && SSL_SET_OPTION(primary.username)
          && !SSL_CONN_CONFIG(verifypeer)
          && gnutls_cipher_get(session)) {
         /* no peer cert, but auth is ok if we have SRP user and cipher and no
@@ -917,7 +917,8 @@ gtls_connect_step3(struct Curl_easy *dat
         failf(data, "server certificate verification failed. CAfile: %s "
               "CRLfile: %s", SSL_CONN_CONFIG(CAfile) ? SSL_CONN_CONFIG(CAfile):
               "none",
-              SSL_SET_OPTION(CRLfile)?SSL_SET_OPTION(CRLfile):"none");
+              SSL_SET_OPTION(primary.CRLfile) ?
+              SSL_SET_OPTION(primary.CRLfile) : "none");
         return CURLE_PEER_FAILED_VERIFICATION;
       }
       else
@@ -1530,8 +1531,8 @@ static int gtls_shutdown(struct Curl_eas
   gnutls_certificate_free_credentials(backend->cred);
 
 #ifdef HAVE_GNUTLS_SRP
-  if(SSL_SET_OPTION(authtype) == CURL_TLSAUTH_SRP
-     && SSL_SET_OPTION(username) != NULL)
+  if(SSL_SET_OPTION(primary.authtype) == CURL_TLSAUTH_SRP
+     && SSL_SET_OPTION(primary.username) != NULL)
     gnutls_srp_free_client_credentials(backend->srp_client_cred);
 #endif
 
Index: curl-7.79.1/lib/vtls/openssl.c
===================================================================
--- curl-7.79.1.orig/lib/vtls/openssl.c
+++ curl-7.79.1/lib/vtls/openssl.c
@@ -2609,7 +2609,7 @@ static CURLcode ossl_connect_step1(struc
 #endif
   const long int ssl_version = SSL_CONN_CONFIG(version);
 #ifdef USE_OPENSSL_SRP
-  const enum CURL_TLSAUTH ssl_authtype = SSL_SET_OPTION(authtype);
+  const enum CURL_TLSAUTH ssl_authtype = SSL_SET_OPTION(primary.authtype);
 #endif
   char * const ssl_cert = SSL_SET_OPTION(primary.clientcert);
   const struct curl_blob *ssl_cert_blob = SSL_SET_OPTION(primary.cert_blob);
@@ -2620,7 +2620,7 @@ static CURLcode ossl_connect_step1(struc
     (ca_info_blob ? NULL : SSL_CONN_CONFIG(CAfile));
   const char * const ssl_capath = SSL_CONN_CONFIG(CApath);
   const bool verifypeer = SSL_CONN_CONFIG(verifypeer);
-  const char * const ssl_crlfile = SSL_SET_OPTION(CRLfile);
+  const char * const ssl_crlfile = SSL_SET_OPTION(primary.CRLfile);
   char error_buffer[256];
   struct ssl_backend_data *backend = connssl->backend;
   bool imported_native_ca = false;
@@ -2871,15 +2871,15 @@ static CURLcode ossl_connect_step1(struc
 #ifdef USE_OPENSSL_SRP
   if((ssl_authtype == CURL_TLSAUTH_SRP) &&
      Curl_allow_auth_to_host(data)) {
-    char * const ssl_username = SSL_SET_OPTION(username);
-
+    char * const ssl_username = SSL_SET_OPTION(primary.username);
+    char * const ssl_password = SSL_SET_OPTION(primary.password);
     infof(data, "Using TLS-SRP username: %s", ssl_username);
 
     if(!SSL_CTX_set_srp_username(backend->ctx, ssl_username)) {
       failf(data, "Unable to set SRP user name");
       return CURLE_BAD_FUNCTION_ARGUMENT;
     }
-    if(!SSL_CTX_set_srp_password(backend->ctx, SSL_SET_OPTION(password))) {
+    if(!SSL_CTX_set_srp_password(backend->ctx, ssl_password)) {
       failf(data, "failed setting SRP password");
       return CURLE_BAD_FUNCTION_ARGUMENT;
     }
Index: curl-7.79.1/lib/vtls/vtls.c
===================================================================
--- curl-7.79.1.orig/lib/vtls/vtls.c
+++ curl-7.79.1/lib/vtls/vtls.c
@@ -132,6 +132,7 @@ Curl_ssl_config_matches(struct ssl_prima
 {
   if((data->version == needle->version) &&
      (data->version_max == needle->version_max) &&
+     (data->ssl_options == needle->ssl_options) &&
      (data->verifypeer == needle->verifypeer) &&
      (data->verifyhost == needle->verifyhost) &&
      (data->verifystatus == needle->verifystatus) &&
@@ -144,9 +145,15 @@ Curl_ssl_config_matches(struct ssl_prima
      Curl_safecmp(data->clientcert, needle->clientcert) &&
      Curl_safecmp(data->random_file, needle->random_file) &&
      Curl_safecmp(data->egdsocket, needle->egdsocket) &&
+#ifdef USE_TLS_SRP
+     Curl_safecmp(data->username, needle->username) &&
+     Curl_safecmp(data->password, needle->password) &&
+     (data->authtype == needle->authtype) &&
+#endif
      Curl_safe_strcasecompare(data->cipher_list, needle->cipher_list) &&
      Curl_safe_strcasecompare(data->cipher_list13, needle->cipher_list13) &&
      Curl_safe_strcasecompare(data->curves, needle->curves) &&
+     Curl_safe_strcasecompare(data->CRLfile, needle->CRLfile) &&
      Curl_safe_strcasecompare(data->pinned_key, needle->pinned_key))
     return TRUE;
 
@@ -163,6 +170,10 @@ Curl_clone_primary_ssl_config(struct ssl
   dest->verifyhost = source->verifyhost;
   dest->verifystatus = source->verifystatus;
   dest->sessionid = source->sessionid;
+  dest->ssl_options = source->ssl_options;
+#ifdef USE_TLS_SRP
+  dest->authtype = source->authtype;
+#endif
 
   CLONE_BLOB(cert_blob);
   CLONE_BLOB(ca_info_blob);
@@ -177,6 +188,11 @@ Curl_clone_primary_ssl_config(struct ssl
   CLONE_STRING(cipher_list13);
   CLONE_STRING(pinned_key);
   CLONE_STRING(curves);
+  CLONE_STRING(CRLfile);
+#ifdef USE_TLS_SRP
+  CLONE_STRING(username);
+  CLONE_STRING(password);
+#endif
 
   return TRUE;
 }
@@ -196,6 +212,11 @@ void Curl_free_primary_ssl_config(struct
   Curl_safefree(sslc->ca_info_blob);
   Curl_safefree(sslc->issuercert_blob);
   Curl_safefree(sslc->curves);
+  Curl_safefree(sslc->CRLfile);
+#ifdef USE_TLS_SRP
+  Curl_safefree(sslc->username);
+  Curl_safefree(sslc->password);
+#endif
 }
 
 #ifdef USE_SSL
Index: curl-7.79.1/lib/vssh/ssh.h
===================================================================
--- curl-7.79.1.orig/lib/vssh/ssh.h
+++ curl-7.79.1/lib/vssh/ssh.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2021, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -131,8 +131,8 @@ struct ssh_conn {
 
   /* common */
   const char *passphrase;     /* pass-phrase to use */
-  char *rsa_pub;              /* path name */
-  char *rsa;                  /* path name */
+  char *rsa_pub;              /* strdup'ed public key file */
+  char *rsa;                  /* strdup'ed private key file */
   bool authed;                /* the connection has been authenticated fine */
   bool acceptfail;            /* used by the SFTP_QUOTE (continue if
                                  quote command fails) */

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File curl-CVE-2022-27782.patch of Package curl (Revision cc453aad165bdec74c948b8a529563e7)

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