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nixpkgs/pkgs/tools/networking/curl/7.74.0-CVE-2021-22890.patch
Robert Scott 6808269554 curl: add patches for CVE-2021-22876, CVE-2021-22890 
hand-backported from upstream fixes
2021-04-02 18:13:36 +01:00

474 lines
20 KiB
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Based on upstream b09c8ee15771c614c4bf3ddac893cdb12187c844, adapted by ris mostly to
compensate for lack of bbe3aa9f881fa27fe828e3c9a36d6831f254a3ee
diff --git a/lib/vtls/bearssl.c b/lib/vtls/bearssl.c
index 36c32d8d55be..39fc1a29209c 100644
--- a/lib/vtls/bearssl.c
+++ b/lib/vtls/bearssl.c
@@ -375,7 +375,8 @@ static CURLcode bearssl_connect_step1(struct Curl_easy *data,
void *session;
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &session, NULL, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn, SSL_IS_PROXY() ? TRUE : FALSE,
+ &session, NULL, sockindex)) {
br_ssl_engine_set_session_parameters(&backend->ctx.eng, session);
infof(data, "BearSSL: re-using session ID\n");
}
@@ -571,9 +572,13 @@ static CURLcode bearssl_connect_step3(struct Curl_easy *data,
br_ssl_engine_get_session_parameters(&backend->ctx.eng, session);
Curl_ssl_sessionid_lock(conn);
- incache = !(Curl_ssl_getsessionid(conn, &oldsession, NULL, sockindex));
+ incache = !(Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ &oldsession, NULL, sockindex));
if(incache)
Curl_ssl_delsessionid(conn, oldsession);
- ret = Curl_ssl_addsessionid(conn, session, 0, sockindex);
+ ret = Curl_ssl_addsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ session, 0, sockindex);
Curl_ssl_sessionid_unlock(conn);
if(ret) {
free(session);
diff --git a/lib/vtls/gtls.c b/lib/vtls/gtls.c
index a75937b4646c..3b0d940a60e1 100644
--- a/lib/vtls/gtls.c
+++ b/lib/vtls/gtls.c
@@ -727,5 +727,7 @@ gtls_connect_step1(struct Curl_easy *data,
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &ssl_sessionid, &ssl_idsize, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ &ssl_sessionid, &ssl_idsize, sockindex)) {
/* we got a session id, use it! */
gnutls_session_set_data(session, ssl_sessionid, ssl_idsize);
@@ -1286,8 +1287,9 @@ gtls_connect_step3(struct Curl_easy *data,
gnutls_session_get_data(session, connect_sessionid, &connect_idsize);
Curl_ssl_sessionid_lock(conn);
- incache = !(Curl_ssl_getsessionid(conn, &ssl_sessionid, NULL,
- sockindex));
+ incache = !(Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ &ssl_sessionid, NULL, sockindex));
if(incache) {
/* there was one before in the cache, so instead of risking that the
previous one was rejected, we just kill that and store the new */
@@ -1295,8 +1297,10 @@ gtls_connect_step3(struct Curl_easy *data,
}
/* store this session id */
- result = Curl_ssl_addsessionid(conn, connect_sessionid, connect_idsize,
- sockindex);
+ result = Curl_ssl_addsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ connect_sessionid, connect_idsize,
+ sockindex);
Curl_ssl_sessionid_unlock(conn);
if(result) {
free(connect_sessionid);
diff --git a/lib/vtls/mbedtls.c b/lib/vtls/mbedtls.c
index 95cd4d99b665..93a7ac1fd87d 100644
--- a/lib/vtls/mbedtls.c
+++ b/lib/vtls/mbedtls.c
@@ -463,7 +463,9 @@ mbed_connect_step1(struct Curl_easy *data, struct connectdata *conn,
void *old_session = NULL;
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &old_session, NULL, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ &old_session, NULL, sockindex)) {
ret = mbedtls_ssl_set_session(&backend->ssl, old_session);
if(ret) {
Curl_ssl_sessionid_unlock(conn);
@@ -724,6 +726,7 @@ mbed_connect_step3(struct Curl_easy *data, struct connectdata *conn,
int ret;
mbedtls_ssl_session *our_ssl_sessionid;
void *old_ssl_sessionid = NULL;
+ bool isproxy = SSL_IS_PROXY() ? TRUE : FALSE;
our_ssl_sessionid = malloc(sizeof(mbedtls_ssl_session));
if(!our_ssl_sessionid)
@@ -742,10 +745,12 @@ mbed_connect_step3(struct Curl_easy *data, struct connectdata *conn,
/* If there's already a matching session in the cache, delete it */
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL, sockindex))
+ if(!Curl_ssl_getsessionid(conn, isproxy, &old_ssl_sessionid, NULL,
+ sockindex))
Curl_ssl_delsessionid(conn, old_ssl_sessionid);
- retcode = Curl_ssl_addsessionid(conn, our_ssl_sessionid, 0, sockindex);
+ retcode = Curl_ssl_addsessionid(conn, isproxy, our_ssl_sessionid,
+ 0, sockindex);
Curl_ssl_sessionid_unlock(conn);
if(retcode) {
mbedtls_ssl_session_free(our_ssl_sessionid);
diff --git a/lib/vtls/mesalink.c b/lib/vtls/mesalink.c
index 4f1ab8627f49..5d6a1495d790 100644
--- a/lib/vtls/mesalink.c
+++ b/lib/vtls/mesalink.c
@@ -261,7 +261,9 @@ mesalink_connect_step1(struct Curl_easy *data,
void *ssl_sessionid = NULL;
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &ssl_sessionid, NULL, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ &ssl_sessionid, NULL, sockindex)) {
/* we got a session id, use it! */
if(!SSL_set_session(BACKEND->handle, ssl_sessionid)) {
Curl_ssl_sessionid_unlock(conn);
@@ -345,12 +347,14 @@ mesalink_connect_step3(struct connectdata *conn, int sockindex)
bool incache;
SSL_SESSION *our_ssl_sessionid;
void *old_ssl_sessionid = NULL;
+ bool isproxy = SSL_IS_PROXY() ? TRUE : FALSE;
our_ssl_sessionid = SSL_get_session(BACKEND->handle);
Curl_ssl_sessionid_lock(conn);
incache =
- !(Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL, sockindex));
+ !(Curl_ssl_getsessionid(conn, isproxy, &old_ssl_sessionid, NULL,
+ sockindex));
if(incache) {
if(old_ssl_sessionid != our_ssl_sessionid) {
infof(data, "old SSL session ID is stale, removing\n");
@@ -361,8 +364,9 @@ mesalink_connect_step3(struct connectdata *conn, int sockindex)
}
if(!incache) {
- result = Curl_ssl_addsessionid(
- conn, our_ssl_sessionid, 0 /* unknown size */, sockindex);
+ result =
+ Curl_ssl_addsessionid(conn, isproxy, our_ssl_sessionid, 0,
+ sockindex);
if(result) {
Curl_ssl_sessionid_unlock(conn);
failf(data, "failed to store ssl session");
diff --git a/lib/vtls/openssl.c b/lib/vtls/openssl.c
index 498f8b9d1d08..68b98984b460 100644
--- a/lib/vtls/openssl.c
+++ b/lib/vtls/openssl.c
@@ -393,12 +393,23 @@ static int ossl_get_ssl_conn_index(void)
*/
static int ossl_get_ssl_sockindex_index(void)
{
- static int ssl_ex_data_sockindex_index = -1;
- if(ssl_ex_data_sockindex_index < 0) {
- ssl_ex_data_sockindex_index = SSL_get_ex_new_index(0, NULL, NULL, NULL,
- NULL);
+ static int sockindex_index = -1;
+ if(sockindex_index < 0) {
+ sockindex_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
}
- return ssl_ex_data_sockindex_index;
+ return sockindex_index;
+}
+
+/* Return an extra data index for proxy boolean.
+ * This index can be used with SSL_get_ex_data() and SSL_set_ex_data().
+ */
+static int ossl_get_proxy_index(void)
+{
+ static int proxy_index = -1;
+ if(proxy_index < 0) {
+ proxy_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
+ }
+ return proxy_index;
}
static int passwd_callback(char *buf, int num, int encrypting,
@@ -1174,6 +1185,7 @@ static int ossl_init(void)
/* Initialize the extra data indexes */
- if(ossl_get_ssl_conn_index() < 0 || ossl_get_ssl_sockindex_index() < 0)
+ if(ossl_get_ssl_conn_index() < 0 ||
+ ossl_get_ssl_sockindex_index() < 0 || ossl_get_proxy_index() < 0)
return 0;
return 1;
@@ -2432,8 +2443,10 @@ static int ossl_new_session_cb(SSL *ssl, SSL_SESSION *ssl_sessionid)
curl_socket_t *sockindex_ptr;
int connectdata_idx = ossl_get_ssl_conn_index();
int sockindex_idx = ossl_get_ssl_sockindex_index();
+ int proxy_idx = ossl_get_proxy_index();
+ bool isproxy;
- if(connectdata_idx < 0 || sockindex_idx < 0)
+ if(connectdata_idx < 0 || sockindex_idx < 0 || proxy_idx < 0)
return 0;
conn = (struct connectdata*) SSL_get_ex_data(ssl, connectdata_idx);
@@ -2446,13 +2459,18 @@ static int ossl_new_session_cb(SSL *ssl, SSL_SESSION *ssl_sessionid)
sockindex_ptr = (curl_socket_t*) SSL_get_ex_data(ssl, sockindex_idx);
sockindex = (int)(sockindex_ptr - conn->sock);
+ isproxy = SSL_get_ex_data(ssl, proxy_idx) ? TRUE : FALSE;
+
if(SSL_SET_OPTION(primary.sessionid)) {
bool incache;
void *old_ssl_sessionid = NULL;
Curl_ssl_sessionid_lock(conn);
- incache = !(Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL,
- sockindex));
+ if(isproxy)
+ incache = FALSE;
+ else
+ incache = !(Curl_ssl_getsessionid(conn, isproxy,
+ &old_ssl_sessionid, NULL, sockindex));
if(incache) {
if(old_ssl_sessionid != ssl_sessionid) {
infof(data, "old SSL session ID is stale, removing\n");
@@ -2462,8 +2480,8 @@ static int ossl_new_session_cb(SSL *ssl, SSL_SESSION *ssl_sessionid)
}
if(!incache) {
- if(!Curl_ssl_addsessionid(conn, ssl_sessionid,
- 0 /* unknown size */, sockindex)) {
+ if(!Curl_ssl_addsessionid(conn, isproxy, ssl_sessionid,
+ 0 /* unknown size */, sockindex)) {
/* the session has been put into the session cache */
res = 1;
}
@@ -3193,16 +3211,26 @@ static CURLcode ossl_connect_step1(struct Curl_easy *data,
void *ssl_sessionid = NULL;
int connectdata_idx = ossl_get_ssl_conn_index();
int sockindex_idx = ossl_get_ssl_sockindex_index();
+ int proxy_idx = ossl_get_proxy_index();
- if(connectdata_idx >= 0 && sockindex_idx >= 0) {
+ if(connectdata_idx >= 0 && sockindex_idx >= 0 &&
+ proxy_idx >= 0) {
/* Store the data needed for the "new session" callback.
* The sockindex is stored as a pointer to an array element. */
SSL_set_ex_data(backend->handle, connectdata_idx, conn);
SSL_set_ex_data(backend->handle, sockindex_idx, conn->sock + sockindex);
+#ifndef CURL_DISABLE_PROXY
+ SSL_set_ex_data(backend->handle, proxy_idx, SSL_IS_PROXY() ? (void *) 1:
+ NULL);
+#else
+ SSL_set_ex_data(backend->handle, proxy_idx, NULL);
+#endif
+
}
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &ssl_sessionid, NULL, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn, SSL_IS_PROXY() ? TRUE : FALSE,
+ &ssl_sessionid, NULL, sockindex)) {
/* we got a session id, use it! */
if(!SSL_set_session(backend->handle, ssl_sessionid)) {
Curl_ssl_sessionid_unlock(conn);
diff --git a/lib/vtls/schannel.c b/lib/vtls/schannel.c
index d7b89d43f892..931bd853eb8e 100644
--- a/lib/vtls/schannel.c
+++ b/lib/vtls/schannel.c
@@ -496,5 +496,7 @@ schannel_connect_step1(struct Curl_easy *data, struct connectdata *conn,
if(SSL_SET_OPTION(primary.sessionid)) {
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, (void **)&old_cred, NULL, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ (void **)&old_cred, NULL, sockindex)) {
BACKEND->cred = old_cred;
DEBUGF(infof(data, "schannel: re-using existing credential handle\n"));
@@ -1337,8 +1338,9 @@ schannel_connect_step3(struct Curl_easy *data, struct connectdata *conn,
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
SECURITY_STATUS sspi_status = SEC_E_OK;
CERT_CONTEXT *ccert_context = NULL;
+ bool isproxy = SSL_IS_PROXY();
#ifdef DEBUGBUILD
- const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
+ const char * const hostname = isproxy ? conn->http_proxy.host.name :
conn->host.name;
#endif
#ifdef HAS_ALPN
@@ -1414,8 +1416,8 @@ schannel_connect_step3(struct Curl_easy *data, struct connectdata *conn,
struct Curl_schannel_cred *old_cred = NULL;
Curl_ssl_sessionid_lock(conn);
- incache = !(Curl_ssl_getsessionid(conn, (void **)&old_cred, NULL,
- sockindex));
+ incache = !(Curl_ssl_getsessionid(conn, isproxy, (void **)&old_cred,
+ NULL, sockindex));
if(incache) {
if(old_cred != BACKEND->cred) {
DEBUGF(infof(data,
@@ -1426,7 +1428,7 @@ schannel_connect_step3(struct Curl_easy *data, struct connectdata *conn,
}
}
if(!incache) {
- result = Curl_ssl_addsessionid(conn, (void *)BACKEND->cred,
+ result = Curl_ssl_addsessionid(conn, isproxy, BACKEND->cred,
sizeof(struct Curl_schannel_cred),
sockindex);
if(result) {
diff --git a/lib/vtls/sectransp.c b/lib/vtls/sectransp.c
index 05b57dfaad91..e69b99b72cd6 100644
--- a/lib/vtls/sectransp.c
+++ b/lib/vtls/sectransp.c
@@ -1400,10 +1400,12 @@ static CURLcode sectransp_connect_step1(struct Curl_easy *data,
char * const ssl_cert = SSL_SET_OPTION(primary.clientcert);
const struct curl_blob *ssl_cert_blob = SSL_SET_OPTION(primary.cert_blob);
#ifndef CURL_DISABLE_PROXY
- const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
+ bool isproxy = SSL_IS_PROXY();
+ const char * const hostname = isproxy ? conn->http_proxy.host.name :
conn->host.name;
const long int port = SSL_IS_PROXY() ? conn->port : conn->remote_port;
#else
+ const isproxy = FALSE;
const char * const hostname = conn->host.name;
const long int port = conn->remote_port;
#endif
@@ -1613,7 +1615,7 @@ static CURLcode sectransp_connect_step1(struct Curl_easy *data,
#ifdef USE_NGHTTP2
if(data->state.httpversion >= CURL_HTTP_VERSION_2
#ifndef CURL_DISABLE_PROXY
- && (!SSL_IS_PROXY() || !conn->bits.tunnel_proxy)
+ && (!isproxy || !conn->bits.tunnel_proxy)
#endif
) {
CFArrayAppendValue(alpnArr, CFSTR(NGHTTP2_PROTO_VERSION_ID));
@@ -1953,7 +1955,7 @@ static CURLcode sectransp_connect_step1(struct Curl_easy *data,
size_t ssl_sessionid_len;
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, (void **)&ssl_sessionid,
+ if(!Curl_ssl_getsessionid(conn, isproxy, (void **)&ssl_sessionid,
&ssl_sessionid_len, sockindex)) {
/* we got a session id, use it! */
err = SSLSetPeerID(backend->ssl_ctx, ssl_sessionid, ssl_sessionid_len);
@@ -1981,7 +1983,7 @@ static CURLcode sectransp_connect_step1(struct Curl_easy *data,
return CURLE_SSL_CONNECT_ERROR;
}
- result = Curl_ssl_addsessionid(conn, ssl_sessionid, ssl_sessionid_len,
+ result = Curl_ssl_addsessionid(conn, isproxy, ssl_sessionid, ssl_sessionid_len,
sockindex);
Curl_ssl_sessionid_unlock(conn);
if(result) {
diff --git a/lib/vtls/vtls.c b/lib/vtls/vtls.c
index 6a0069237fdb..95fd6356285f 100644
--- a/lib/vtls/vtls.c
+++ b/lib/vtls/vtls.c
@@ -367,5 +367,6 @@ void Curl_ssl_sessionid_unlock(struct Curl_easy *data)
*/
bool Curl_ssl_getsessionid(struct connectdata *conn,
+ const bool isProxy,
void **ssl_sessionid,
size_t *idsize, /* set 0 if unknown */
int sockindex)
@@ -377,7 +378,6 @@ bool Curl_ssl_getsessionid(struct Curl_easy *data,
bool no_match = TRUE;
#ifndef CURL_DISABLE_PROXY
- const bool isProxy = CONNECT_PROXY_SSL();
struct ssl_primary_config * const ssl_config = isProxy ?
&conn->proxy_ssl_config :
&conn->ssl_config;
@@ -389,10 +389,15 @@ bool Curl_ssl_getsessionid(struct Curl_easy *data,
struct ssl_primary_config * const ssl_config = &conn->ssl_config;
const char * const name = conn->host.name;
int port = conn->remote_port;
- (void)sockindex;
#endif
+ (void)sockindex;
*ssl_sessionid = NULL;
+#ifdef CURL_DISABLE_PROXY
+ if(isProxy)
+ return TRUE;
+#endif
+
DEBUGASSERT(SSL_SET_OPTION(primary.sessionid));
if(!SSL_SET_OPTION(primary.sessionid))
@@ -480,5 +485,6 @@ void Curl_ssl_delsessionid(struct Curl_easy *data, void *ssl_sessionid)
*/
CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
+ bool isProxy,
void *ssl_sessionid,
size_t idsize,
int sockindex)
@@ -492,7 +498,6 @@ CURLcode Curl_ssl_addsessionid(struct Curl_easy *data,
int conn_to_port;
long *general_age;
#ifndef CURL_DISABLE_PROXY
- const bool isProxy = CONNECT_PROXY_SSL();
struct ssl_primary_config * const ssl_config = isProxy ?
&conn->proxy_ssl_config :
&conn->ssl_config;
@@ -505,6 +510,7 @@ CURLcode Curl_ssl_addsessionid(struct Curl_easy *data,
const char *hostname = conn->host.name;
(void)sockindex;
#endif
+ (void)sockindex;
DEBUGASSERT(SSL_SET_OPTION(primary.sessionid));
clone_host = strdup(hostname);
diff --git a/lib/vtls/vtls.h b/lib/vtls/vtls.h
index 273184f1894a..2b43e7744b19 100644
--- a/lib/vtls/vtls.h
+++ b/lib/vtls/vtls.h
@@ -235,5 +235,6 @@ void Curl_ssl_sessionid_unlock(struct Curl_easy *data);
*/
bool Curl_ssl_getsessionid(struct connectdata *conn,
+ const bool isproxy,
void **ssl_sessionid,
size_t *idsize, /* set 0 if unknown */
int sockindex);
@@ -245,5 +246,6 @@ bool Curl_ssl_getsessionid(struct Curl_easy *data,
*/
CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
+ const bool isProxy,
void *ssl_sessionid,
size_t idsize,
int sockindex);
diff --git a/lib/vtls/wolfssl.c b/lib/vtls/wolfssl.c
index 7159ac9d5e64..8fb2ea7acf31 100644
--- a/lib/vtls/wolfssl.c
+++ b/lib/vtls/wolfssl.c
@@ -516,7 +516,9 @@ wolfssl_connect_step1(struct Curl_easy *data, struct connectdata *conn,
void *ssl_sessionid = NULL;
Curl_ssl_sessionid_lock(conn);
- if(!Curl_ssl_getsessionid(conn, &ssl_sessionid, NULL, sockindex)) {
+ if(!Curl_ssl_getsessionid(conn,
+ SSL_IS_PROXY() ? TRUE : FALSE,
+ &ssl_sessionid, NULL, sockindex)) {
/* we got a session id, use it! */
if(!SSL_set_session(backend->handle, ssl_sessionid)) {
char error_buffer[WOLFSSL_MAX_ERROR_SZ];
@@ -772,10 +774,11 @@ wolfssl_connect_step3(struct Curl_easy *data, struct connectdata *conn,
void *old_ssl_sessionid = NULL;
our_ssl_sessionid = SSL_get_session(backend->handle);
+ bool isproxy = SSL_IS_PROXY() ? TRUE : FALSE;
Curl_ssl_sessionid_lock(conn);
- incache = !(Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL,
- sockindex));
+ incache = !(Curl_ssl_getsessionid(conn, isproxy,
+ &old_ssl_sessionid, NULL, sockindex));
if(incache) {
if(old_ssl_sessionid != our_ssl_sessionid) {
infof(data, "old SSL session ID is stale, removing\n");
@@ -786,8 +789,8 @@ wolfssl_connect_step3(struct Curl_easy *data, struct connectdata *conn,
}
if(!incache) {
- result = Curl_ssl_addsessionid(conn, our_ssl_sessionid,
- 0 /* unknown size */, sockindex);
+ result = Curl_ssl_addsessionid(conn, isproxy, our_ssl_sessionid,
+ 0, sockindex);
if(result) {
Curl_ssl_sessionid_unlock(conn);
failf(data, "failed to store ssl session");
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