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openSUSE:Step:15-SP6
curl.27108
curl-CVE-2022-27782.patch
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File curl-CVE-2022-27782.patch of Package curl.27108
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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