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SUSE:SLE-12-SP3:GA
apache2.35281
apache2-CVE-2021-44224-2.patch
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File apache2-CVE-2021-44224-2.patch of Package apache2.35281
Index: httpd-2.4.23/include/http_protocol.h =================================================================== --- httpd-2.4.23.orig/include/http_protocol.h 2022-01-05 11:27:51.758286480 +0100 +++ httpd-2.4.23/include/http_protocol.h 2022-01-05 11:27:52.110288470 +0100 @@ -75,6 +75,13 @@ AP_DECLARE(void) ap_get_mime_headers(req AP_DECLARE(void) ap_get_mime_headers_core(request_rec *r, apr_bucket_brigade *bb); +/** + * Run post_read_request hook and validate. + * @param r The current request + * @return OK or HTTP_... + */ +AP_DECLARE(int) ap_post_read_request(request_rec *r); + /* Finish up stuff after a request */ /** Index: httpd-2.4.23/modules/http/http_request.c =================================================================== --- httpd-2.4.23.orig/modules/http/http_request.c 2015-11-26 14:42:42.000000000 +0100 +++ httpd-2.4.23/modules/http/http_request.c 2022-01-05 11:27:52.110288470 +0100 @@ -629,7 +629,7 @@ static request_rec *internal_internal_re * to do their thing on internal redirects as well. Perhaps this is a * misnamed function. */ - if ((access_status = ap_run_post_read_request(new))) { + if ((access_status = ap_post_read_request(new))) { ap_die(access_status, new); return NULL; } Index: httpd-2.4.23/modules/http2/h2_request.c =================================================================== --- httpd-2.4.23.orig/modules/http2/h2_request.c 2022-01-05 11:27:52.050288131 +0100 +++ httpd-2.4.23/modules/http2/h2_request.c 2022-01-05 11:27:52.110288470 +0100 @@ -345,7 +345,7 @@ request_rec *h2_request_create_rec(const NULL, r, r->connection); if (access_status != HTTP_OK - || (access_status = ap_run_post_read_request(r))) { + || (access_status = ap_post_read_request(r))) { /* Request check post hooks failed. An example of this would be a * request for a vhost where h2 is disabled --> 421. */ Index: httpd-2.4.23/modules/proxy/mod_proxy.c =================================================================== --- httpd-2.4.23.orig/modules/proxy/mod_proxy.c 2022-01-05 11:27:52.102288425 +0100 +++ httpd-2.4.23/modules/proxy/mod_proxy.c 2022-01-05 11:27:52.110288470 +0100 @@ -555,13 +555,13 @@ static int proxy_detect(request_rec *r) /* Ick... msvc (perhaps others) promotes ternary short results to int */ - if (conf->req && r->parsed_uri.scheme) { + if (conf->req && r->parsed_uri.scheme && r->parsed_uri.hostname) { /* but it might be something vhosted */ - if (!(r->parsed_uri.hostname - && !strcasecmp(r->parsed_uri.scheme, ap_http_scheme(r)) - && ap_matches_request_vhost(r, r->parsed_uri.hostname, - (apr_port_t)(r->parsed_uri.port_str ? r->parsed_uri.port - : ap_default_port(r))))) { + if (ap_cstr_casecmp(r->parsed_uri.scheme, ap_http_scheme(r)) != 0 + || !ap_matches_request_vhost(r, r->parsed_uri.hostname, + (apr_port_t)(r->parsed_uri.port_str + ? r->parsed_uri.port + : ap_default_port(r)))) { r->proxyreq = PROXYREQ_PROXY; r->uri = r->unparsed_uri; r->filename = apr_pstrcat(r->pool, "proxy:", r->uri, NULL); @@ -1572,6 +1572,7 @@ static const char * struct proxy_alias *new; char *f = cmd->path; char *r = NULL; + const char *real; char *word; apr_table_t *params = apr_table_make(cmd->pool, 5); const apr_array_header_t *arr; @@ -1638,6 +1639,10 @@ static const char * if (r == NULL) { return "ProxyPass|ProxyPassMatch needs a path when not defined in a location"; } + if (!(real = ap_proxy_de_socketfy(cmd->temp_pool, r))) { + return "ProxyPass|ProxyPassMatch uses an invalid \"unix:\" URL"; + } + /* if per directory, save away the single alias */ if (cmd->path) { @@ -1654,7 +1659,7 @@ static const char * } new->fake = apr_pstrdup(cmd->pool, f); - new->real = apr_pstrdup(cmd->pool, ap_proxy_de_socketfy(cmd->pool, r)); + new->real = apr_pstrdup(cmd->pool, real); new->flags = flags; if (worker_type & AP_PROXY_WORKER_IS_MATCH) { new->regex = ap_pregcomp(cmd->pool, f, AP_REG_EXTENDED); @@ -2133,6 +2138,7 @@ static const char *add_member(cmd_parms proxy_worker *worker; char *path = cmd->path; char *name = NULL; + const char *real; char *word; apr_table_t *params = apr_table_make(cmd->pool, 5); const apr_array_header_t *arr; @@ -2173,6 +2179,9 @@ static const char *add_member(cmd_parms return "BalancerMember must define balancer name when outside <Proxy > section"; if (!name) return "BalancerMember must define remote proxy server"; + if (!(real = ap_proxy_de_socketfy(cmd->temp_pool, name))) { + return "BalancerMember uses an invalid \"unix:\" URL"; + } ap_str_tolower(path); /* lowercase scheme://hostname */ @@ -2185,8 +2194,7 @@ static const char *add_member(cmd_parms } /* Try to find existing worker */ - worker = ap_proxy_get_worker(cmd->temp_pool, balancer, conf, - ap_proxy_de_socketfy(cmd->temp_pool, name)); + worker = ap_proxy_get_worker(cmd->temp_pool, balancer, conf, real); if (!worker) { ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, cmd->server, APLOGNO(01147) "Defining worker '%s' for balancer '%s'", @@ -2280,9 +2288,14 @@ static const char * } } else { + const char *real; + + if (!(real = ap_proxy_de_socketfy(cmd->temp_pool, name))) { + return "ProxySet uses an invalid \"unix:\" URL"; + } + worker = ap_proxy_get_worker_ex(cmd->temp_pool, NULL, conf, - ap_proxy_de_socketfy(cmd->temp_pool, name), - worker_type); + real, worker_type); if (!worker) { if (in_proxy_section) { err = ap_proxy_define_worker_ex(cmd->pool, &worker, NULL, @@ -2424,9 +2437,14 @@ static const char *proxysection(cmd_parm } } else { + const char *real; + + if (!(real = ap_proxy_de_socketfy(cmd->temp_pool, conf->p))) { + return "<Proxy/ProxyMatch > uses an invalid \"unix:\" URL"; + } + worker = ap_proxy_get_worker_ex(cmd->temp_pool, NULL, sconf, - ap_proxy_de_socketfy(cmd->temp_pool, conf->p), - worker_type); + real, worker_type); if (!worker) { err = ap_proxy_define_worker_ex(cmd->pool, &worker, NULL, sconf, conf->p, worker_type); Index: httpd-2.4.23/modules/proxy/proxy_util.c =================================================================== --- httpd-2.4.23.orig/modules/proxy/proxy_util.c 2022-01-05 11:27:52.102288425 +0100 +++ httpd-2.4.23/modules/proxy/proxy_util.c 2022-01-05 11:27:52.110288470 +0100 @@ -1525,6 +1525,9 @@ PROXY_DECLARE(proxy_worker *) ap_proxy_g } url = ap_proxy_de_socketfy(p, url); + if (!url) { + return NULL; + } c = ap_strchr_c(url, ':'); if (c == NULL || c[1] != '/' || c[2] != '/' || c[3] == '\0') { Index: httpd-2.4.23/server/protocol.c =================================================================== --- httpd-2.4.23.orig/server/protocol.c 2022-01-05 11:27:51.858287045 +0100 +++ httpd-2.4.23/server/protocol.c 2022-01-05 11:27:52.110288470 +0100 @@ -1404,7 +1404,7 @@ request_rec *ap_read_request(conn_rec *c NULL, r, r->connection); if (access_status != HTTP_OK - || (access_status = ap_run_post_read_request(r))) { + || (access_status = ap_post_read_request(r))) { ap_die(access_status, r); ap_update_child_status(conn->sbh, SERVER_BUSY_LOG, r); ap_run_log_transaction(r); @@ -1451,6 +1451,27 @@ request_rec *ap_read_request(conn_rec *c return r; } +AP_DECLARE(int) ap_post_read_request(request_rec *r) +{ + int status; + + if ((status = ap_run_post_read_request(r))) { + return status; + } + + /* Enforce http(s) only scheme for non-forward-proxy requests */ + if (!r->proxyreq + && r->parsed_uri.scheme + && (ap_cstr_casecmpn(r->parsed_uri.scheme, "http", 4) != 0 + || (r->parsed_uri.scheme[4] != '\0' + && (apr_tolower(r->parsed_uri.scheme[4]) != 's' + || r->parsed_uri.scheme[5] != '\0')))) { + return HTTP_BAD_REQUEST; + } + + return OK; +} + /* if a request with a body creates a subrequest, remove original request's * input headers which pertain to the body which has already been read. * out-of-line helper function for ap_set_sub_req_protocol.
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