From: Mike Crowe <m...@mcrowe.com> curl v7.78 contained fixes for five CVEs:
CVE-2021-22922[1] and CVE-2021-22923[2] are only present when support for metalink is enabled. EXTRA_OECONF contains "--without-libmetalink" so these fixes are unnecessary. CVE-2021-22926[3] only affects builds for MacOS. CVE-2021-22924[4] and CVE-2021-22925[5] are both applicable. Take the patches from Ubuntu 20.04 curl_7.68.0-1ubuntu2.6 package which is close enough that the patch for CVE-2021-22924 applies without conflicts.. [1] https://curl.se/docs/CVE-2021-22922.html [2] https://curl.se/docs/CVE-2021-22923.html [3] https://curl.se/docs/CVE-2021-22926.html [4] https://curl.se/docs/CVE-2021-22924.html [5] https://curl.se/docs/CVE-2021-22925.html Signed-off-by: Mike Crowe <m...@mcrowe.com> Signed-off-by: Steve Sakoman <st...@sakoman.com> --- .../curl/curl/CVE-2021-22924.patch | 226 ++++++++++++++++++ .../curl/curl/CVE-2021-22925.patch | 43 ++++ meta/recipes-support/curl/curl_7.69.1.bb | 3 + 3 files changed, 272 insertions(+) create mode 100644 meta/recipes-support/curl/curl/CVE-2021-22924.patch create mode 100644 meta/recipes-support/curl/curl/CVE-2021-22925.patch diff --git a/meta/recipes-support/curl/curl/CVE-2021-22924.patch b/meta/recipes-support/curl/curl/CVE-2021-22924.patch new file mode 100644 index 0000000000..68fde45ddf --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2021-22924.patch @@ -0,0 +1,226 @@ +Subject: [PATCH] vtls: fix connection reuse checks for issuer cert and + case sensitivity CVE-2021-22924 + +Reported-by: Harry Sintonen +Bug: https://curl.se/docs/CVE-2021-22924.html +CVE: CVE-2021-22924 +Upstream-Status: backport from Ubuntu curl_7.68.0-1ubuntu2.6 +Signed-off-by: Mike Crowe <m...@mcrowe.com> +--- + lib/url.c | 5 +++-- + lib/urldata.h | 2 +- + lib/vtls/gtls.c | 10 +++++----- + lib/vtls/nss.c | 4 ++-- + lib/vtls/openssl.c | 12 ++++++------ + lib/vtls/vtls.c | 23 ++++++++++++++++++----- + 6 files changed, 35 insertions(+), 21 deletions(-) + +diff --git a/lib/url.c b/lib/url.c +index 47fc66aed..eebad8d32 100644 +--- a/lib/url.c ++++ b/lib/url.c +@@ -3555,6 +3555,9 @@ static CURLcode create_conn(struct Curl_easy *data, + data->set.proxy_ssl.primary.CApath = data->set.str[STRING_SSL_CAPATH_PROXY]; + data->set.ssl.primary.CAfile = data->set.str[STRING_SSL_CAFILE_ORIG]; + data->set.proxy_ssl.primary.CAfile = data->set.str[STRING_SSL_CAFILE_PROXY]; ++ data->set.ssl.primary.issuercert = data->set.str[STRING_SSL_ISSUERCERT_ORIG]; ++ data->set.proxy_ssl.primary.issuercert = ++ data->set.str[STRING_SSL_ISSUERCERT_PROXY]; + data->set.ssl.primary.random_file = data->set.str[STRING_SSL_RANDOM_FILE]; + data->set.proxy_ssl.primary.random_file = + data->set.str[STRING_SSL_RANDOM_FILE]; +@@ -3575,8 +3578,6 @@ static CURLcode create_conn(struct Curl_easy *data, + + data->set.ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE_ORIG]; + data->set.proxy_ssl.CRLfile = data->set.str[STRING_SSL_CRLFILE_PROXY]; +- data->set.ssl.issuercert = data->set.str[STRING_SSL_ISSUERCERT_ORIG]; +- data->set.proxy_ssl.issuercert = data->set.str[STRING_SSL_ISSUERCERT_PROXY]; + data->set.ssl.cert = data->set.str[STRING_CERT_ORIG]; + data->set.proxy_ssl.cert = data->set.str[STRING_CERT_PROXY]; + data->set.ssl.cert_type = data->set.str[STRING_CERT_TYPE_ORIG]; +diff --git a/lib/urldata.h b/lib/urldata.h +index fbb8b645e..615fbf369 100644 +--- a/lib/urldata.h ++++ b/lib/urldata.h +@@ -224,6 +224,7 @@ struct ssl_primary_config { + long version_max; /* max supported version the client wants to use*/ + char *CApath; /* certificate dir (doesn't work on windows) */ + char *CAfile; /* certificate to verify peer against */ ++ char *issuercert; /* optional issuer certificate filename */ + char *clientcert; + char *random_file; /* path to file containing "random" data */ + char *egdsocket; /* path to file containing the EGD daemon socket */ +@@ -240,7 +241,6 @@ struct ssl_config_data { + struct ssl_primary_config primary; + long certverifyresult; /* result from the certificate verification */ + char *CRLfile; /* CRL to check certificate revocation */ +- char *issuercert;/* optional issuer certificate filename */ + curl_ssl_ctx_callback fsslctx; /* function to initialize ssl ctx */ + void *fsslctxp; /* parameter for call back */ + char *cert; /* client certificate file name */ +diff --git a/lib/vtls/gtls.c b/lib/vtls/gtls.c +index 46e149c7d..8c051024f 100644 +--- a/lib/vtls/gtls.c ++++ b/lib/vtls/gtls.c +@@ -1059,7 +1059,7 @@ gtls_connect_step3(struct connectdata *conn, + if(!chainp) { + if(SSL_CONN_CONFIG(verifypeer) || + SSL_CONN_CONFIG(verifyhost) || +- SSL_SET_OPTION(issuercert)) { ++ SSL_CONN_CONFIG(issuercert)) { + #ifdef USE_TLS_SRP + if(SSL_SET_OPTION(authtype) == CURL_TLSAUTH_SRP + && SSL_SET_OPTION(username) != NULL +@@ -1241,21 +1241,21 @@ gtls_connect_step3(struct connectdata *conn, + gnutls_x509_crt_t format */ + gnutls_x509_crt_import(x509_cert, chainp, GNUTLS_X509_FMT_DER); + +- if(SSL_SET_OPTION(issuercert)) { ++ if(SSL_CONN_CONFIG(issuercert)) { + gnutls_x509_crt_init(&x509_issuer); +- issuerp = load_file(SSL_SET_OPTION(issuercert)); ++ issuerp = load_file(SSL_CONN_CONFIG(issuercert)); + gnutls_x509_crt_import(x509_issuer, &issuerp, GNUTLS_X509_FMT_PEM); + rc = gnutls_x509_crt_check_issuer(x509_cert, x509_issuer); + gnutls_x509_crt_deinit(x509_issuer); + unload_file(issuerp); + if(rc <= 0) { + failf(data, "server certificate issuer check failed (IssuerCert: %s)", +- SSL_SET_OPTION(issuercert)?SSL_SET_OPTION(issuercert):"none"); ++ SSL_CONN_CONFIG(issuercert)?SSL_CONN_CONFIG(issuercert):"none"); + gnutls_x509_crt_deinit(x509_cert); + return CURLE_SSL_ISSUER_ERROR; + } + infof(data, "\t server certificate issuer check OK (Issuer Cert: %s)\n", +- SSL_SET_OPTION(issuercert)?SSL_SET_OPTION(issuercert):"none"); ++ SSL_CONN_CONFIG(issuercert)?SSL_CONN_CONFIG(issuercert):"none"); + } + + size = sizeof(certbuf); +diff --git a/lib/vtls/nss.c b/lib/vtls/nss.c +index ef51b0d91..375c78b1b 100644 +--- a/lib/vtls/nss.c ++++ b/lib/vtls/nss.c +@@ -2151,9 +2151,9 @@ static CURLcode nss_do_connect(struct connectdata *conn, int sockindex) + if(result) + goto error; + +- if(SSL_SET_OPTION(issuercert)) { ++ if(SSL_CONN_CONFIG(issuercert)) { + SECStatus ret = SECFailure; +- char *nickname = dup_nickname(data, SSL_SET_OPTION(issuercert)); ++ char *nickname = dup_nickname(data, SSL_CONN_CONFIG(issuercert)); + if(nickname) { + /* we support only nicknames in case of issuercert for now */ + ret = check_issuer_cert(BACKEND->handle, nickname); +diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c +index 64f43605a..7e81fd3a0 100644 +--- a/lib/vtls/openssl.c ++++ b/lib/vtls/openssl.c +@@ -3547,7 +3547,7 @@ static CURLcode servercert(struct connectdata *conn, + deallocating the certificate. */ + + /* e.g. match issuer name with provided issuer certificate */ +- if(SSL_SET_OPTION(issuercert)) { ++ if(SSL_CONN_CONFIG(issuercert)) { + fp = BIO_new(BIO_s_file()); + if(fp == NULL) { + failf(data, +@@ -3560,10 +3560,10 @@ static CURLcode servercert(struct connectdata *conn, + return CURLE_OUT_OF_MEMORY; + } + +- if(BIO_read_filename(fp, SSL_SET_OPTION(issuercert)) <= 0) { ++ if(BIO_read_filename(fp, SSL_CONN_CONFIG(issuercert)) <= 0) { + if(strict) + failf(data, "SSL: Unable to open issuer cert (%s)", +- SSL_SET_OPTION(issuercert)); ++ SSL_CONN_CONFIG(issuercert)); + BIO_free(fp); + X509_free(BACKEND->server_cert); + BACKEND->server_cert = NULL; +@@ -3574,7 +3574,7 @@ static CURLcode servercert(struct connectdata *conn, + if(!issuer) { + if(strict) + failf(data, "SSL: Unable to read issuer cert (%s)", +- SSL_SET_OPTION(issuercert)); ++ SSL_CONN_CONFIG(issuercert)); + BIO_free(fp); + X509_free(issuer); + X509_free(BACKEND->server_cert); +@@ -3585,7 +3585,7 @@ static CURLcode servercert(struct connectdata *conn, + if(X509_check_issued(issuer, BACKEND->server_cert) != X509_V_OK) { + if(strict) + failf(data, "SSL: Certificate issuer check failed (%s)", +- SSL_SET_OPTION(issuercert)); ++ SSL_CONN_CONFIG(issuercert)); + BIO_free(fp); + X509_free(issuer); + X509_free(BACKEND->server_cert); +@@ -3594,7 +3594,7 @@ static CURLcode servercert(struct connectdata *conn, + } + + infof(data, " SSL certificate issuer check ok (%s)\n", +- SSL_SET_OPTION(issuercert)); ++ SSL_CONN_CONFIG(issuercert)); + BIO_free(fp); + X509_free(issuer); + } +diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c +index aaf73ef8f..8c681da14 100644 +--- a/lib/vtls/vtls.c ++++ b/lib/vtls/vtls.c +@@ -82,6 +82,16 @@ + else \ + dest->var = NULL; + ++static bool safecmp(char *a, char *b) ++{ ++ if(a && b) ++ return !strcmp(a, b); ++ else if(!a && !b) ++ return TRUE; /* match */ ++ return FALSE; /* no match */ ++} ++ ++ + bool + Curl_ssl_config_matches(struct ssl_primary_config* data, + struct ssl_primary_config* needle) +@@ -91,11 +101,12 @@ Curl_ssl_config_matches(struct ssl_primary_config* data, + (data->verifypeer == needle->verifypeer) && + (data->verifyhost == needle->verifyhost) && + (data->verifystatus == needle->verifystatus) && +- Curl_safe_strcasecompare(data->CApath, needle->CApath) && +- Curl_safe_strcasecompare(data->CAfile, needle->CAfile) && +- Curl_safe_strcasecompare(data->clientcert, needle->clientcert) && +- Curl_safe_strcasecompare(data->random_file, needle->random_file) && +- Curl_safe_strcasecompare(data->egdsocket, needle->egdsocket) && ++ safecmp(data->CApath, needle->CApath) && ++ safecmp(data->CAfile, needle->CAfile) && ++ safecmp(data->issuercert, needle->issuercert) && ++ safecmp(data->clientcert, needle->clientcert) && ++ safecmp(data->random_file, needle->random_file) && ++ safecmp(data->egdsocket, needle->egdsocket) && + Curl_safe_strcasecompare(data->cipher_list, needle->cipher_list) && + Curl_safe_strcasecompare(data->cipher_list13, needle->cipher_list13) && + Curl_safe_strcasecompare(data->pinned_key, needle->pinned_key)) +@@ -117,6 +128,7 @@ Curl_clone_primary_ssl_config(struct ssl_primary_config *source, + + CLONE_STRING(CApath); + CLONE_STRING(CAfile); ++ CLONE_STRING(issuercert); + CLONE_STRING(clientcert); + CLONE_STRING(random_file); + CLONE_STRING(egdsocket); +@@ -131,6 +143,7 @@ void Curl_free_primary_ssl_config(struct ssl_primary_config* sslc) + { + Curl_safefree(sslc->CApath); + Curl_safefree(sslc->CAfile); ++ Curl_safefree(sslc->issuercert); + Curl_safefree(sslc->clientcert); + Curl_safefree(sslc->random_file); + Curl_safefree(sslc->egdsocket); +-- +2.30.2 + diff --git a/meta/recipes-support/curl/curl/CVE-2021-22925.patch b/meta/recipes-support/curl/curl/CVE-2021-22925.patch new file mode 100644 index 0000000000..13b55f76be --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2021-22925.patch @@ -0,0 +1,43 @@ +Subject: [PATCH] telnet: fix option parser to not send uninitialized + contents CVE-2021-22925 + +Reported-by: Red Hat Product Security +Bug: https://curl.se/docs/CVE-2021-22925.html +CVE: CVE-2021-22925 +Upstream-Status: backport from Ubuntu curl_7.68.0-1ubuntu2.6 +Signed-off-by: Mike Crowe <m...@mcrowe.com> +--- + lib/telnet.c | 17 +++++++++++------ + 1 file changed, 11 insertions(+), 6 deletions(-) + +diff --git a/lib/telnet.c b/lib/telnet.c +index 4bf4c652c..3347ad6d1 100644 +--- a/lib/telnet.c ++++ b/lib/telnet.c +@@ -967,12 +967,17 @@ static void suboption(struct connectdata *conn) + size_t tmplen = (strlen(v->data) + 1); + /* Add the variable only if it fits */ + if(len + tmplen < (int)sizeof(temp)-6) { +- if(sscanf(v->data, "%127[^,],%127s", varname, varval) == 2) { +- msnprintf((char *)&temp[len], sizeof(temp) - len, +- "%c%s%c%s", CURL_NEW_ENV_VAR, varname, +- CURL_NEW_ENV_VALUE, varval); +- len += tmplen; +- } ++ int rv; ++ char sep[2] = ""; ++ varval[0] = 0; ++ rv = sscanf(v->data, "%127[^,]%1[,]%127s", varname, sep, varval); ++ if(rv == 1) ++ len += msnprintf((char *)&temp[len], sizeof(temp) - len, ++ "%c%s", CURL_NEW_ENV_VAR, varname); ++ else if(rv >= 2) ++ len += msnprintf((char *)&temp[len], sizeof(temp) - len, ++ "%c%s%c%s", CURL_NEW_ENV_VAR, varname, ++ CURL_NEW_ENV_VALUE, varval); + } + } + msnprintf((char *)&temp[len], sizeof(temp) - len, +-- +2.30.2 + diff --git a/meta/recipes-support/curl/curl_7.69.1.bb b/meta/recipes-support/curl/curl_7.69.1.bb index 9b510bcf9f..21c673feda 100644 --- a/meta/recipes-support/curl/curl_7.69.1.bb +++ b/meta/recipes-support/curl/curl_7.69.1.bb @@ -20,6 +20,8 @@ SRC_URI = "https://curl.haxx.se/download/curl-${PV}.tar.bz2 \ file://CVE-2021-22876.patch \ file://CVE-2021-22890.patch \ file://CVE-2021-22898.patch \ + file://CVE-2021-22924.patch \ + file://CVE-2021-22925.patch \ " SRC_URI[md5sum] = "ec5fc263f898a3dfef08e805f1ecca42" @@ -27,6 +29,7 @@ SRC_URI[sha256sum] = "2ff5e5bd507adf6aa88ff4bbafd4c7af464867ffb688be93b9930717a5 # Curl has used many names over the years... CVE_PRODUCT = "haxx:curl haxx:libcurl curl:curl curl:libcurl libcurl:libcurl daniel_stenberg:curl" +CVE_CHECK_WHITELIST = "CVE-2021-22922 CVE-2021-22923 CVE-2021-22926" inherit autotools pkgconfig binconfig multilib_header -- 2.25.1
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