From ce3ab9660e7797cea8274d243c4870e9631c237e Mon Sep 17 00:00:00 2001 From: CentOS Sources Date: Thu, 24 Mar 2022 06:46:12 -0400 Subject: [PATCH] import httpd-2.4.37-43.module+el8.5.0+14530+6f259f31.3 --- SOURCES/httpd-2.4.37-CVE-2022-22720.patch | 154 ++++++++++++++++++++++ SPECS/httpd.spec | 9 +- 2 files changed, 162 insertions(+), 1 deletion(-) create mode 100644 SOURCES/httpd-2.4.37-CVE-2022-22720.patch diff --git a/SOURCES/httpd-2.4.37-CVE-2022-22720.patch b/SOURCES/httpd-2.4.37-CVE-2022-22720.patch new file mode 100644 index 0000000..e4abca2 --- /dev/null +++ b/SOURCES/httpd-2.4.37-CVE-2022-22720.patch @@ -0,0 +1,154 @@ +diff --git a/modules/http/http_filters.c b/modules/http/http_filters.c +index 9828cdf..6bedcac 100644 +--- a/modules/http/http_filters.c ++++ b/modules/http/http_filters.c +@@ -1605,9 +1605,9 @@ AP_DECLARE(int) ap_map_http_request_error(apr_status_t rv, int status) + */ + AP_DECLARE(int) ap_discard_request_body(request_rec *r) + { ++ int rc = OK; ++ conn_rec *c = r->connection; + apr_bucket_brigade *bb; +- int seen_eos; +- apr_status_t rv; + + /* Sometimes we'll get in a state where the input handling has + * detected an error where we want to drop the connection, so if +@@ -1616,54 +1616,57 @@ AP_DECLARE(int) ap_discard_request_body(request_rec *r) + * + * This function is also a no-op on a subrequest. + */ +- if (r->main || r->connection->keepalive == AP_CONN_CLOSE || +- ap_status_drops_connection(r->status)) { ++ if (r->main || c->keepalive == AP_CONN_CLOSE) { ++ return OK; ++ } ++ if (ap_status_drops_connection(r->status)) { ++ c->keepalive = AP_CONN_CLOSE; + return OK; + } + + bb = apr_brigade_create(r->pool, r->connection->bucket_alloc); +- seen_eos = 0; +- do { +- apr_bucket *bucket; ++ for (;;) { ++ apr_status_t rv; + + rv = ap_get_brigade(r->input_filters, bb, AP_MODE_READBYTES, + APR_BLOCK_READ, HUGE_STRING_LEN); +- + if (rv != APR_SUCCESS) { +- apr_brigade_destroy(bb); +- return ap_map_http_request_error(rv, HTTP_BAD_REQUEST); ++ rc = ap_map_http_request_error(rv, HTTP_BAD_REQUEST); ++ goto cleanup; + } + +- for (bucket = APR_BRIGADE_FIRST(bb); +- bucket != APR_BRIGADE_SENTINEL(bb); +- bucket = APR_BUCKET_NEXT(bucket)) +- { +- const char *data; +- apr_size_t len; ++ while (!APR_BRIGADE_EMPTY(bb)) { ++ apr_bucket *b = APR_BRIGADE_FIRST(bb); + +- if (APR_BUCKET_IS_EOS(bucket)) { +- seen_eos = 1; +- break; ++ if (APR_BUCKET_IS_EOS(b)) { ++ goto cleanup; + } + +- /* These are metadata buckets. */ +- if (bucket->length == 0) { +- continue; +- } +- +- /* We MUST read because in case we have an unknown-length +- * bucket or one that morphs, we want to exhaust it. ++ /* There is no need to read empty or metadata buckets or ++ * buckets of known length, but we MUST read buckets of ++ * unknown length in order to exhaust them. + */ +- rv = apr_bucket_read(bucket, &data, &len, APR_BLOCK_READ); ++ if (b->length == (apr_size_t)-1) { ++ apr_size_t len; ++ const char *data; ++ ++ rv = apr_bucket_read(b, &data, &len, APR_BLOCK_READ); + if (rv != APR_SUCCESS) { +- apr_brigade_destroy(bb); +- return HTTP_BAD_REQUEST; ++ rc = HTTP_BAD_REQUEST; ++ goto cleanup; + } + } +- apr_brigade_cleanup(bb); +- } while (!seen_eos); + +- return OK; ++ apr_bucket_delete(b); ++ } ++ } ++ ++cleanup: ++ apr_brigade_cleanup(bb); ++ if (rc != OK) { ++ c->keepalive = AP_CONN_CLOSE; ++ } ++ return rc; + } + + /* Here we deal with getting the request message body from the client. +diff --git a/server/protocol.c b/server/protocol.c +index a2aa081..a554970 100644 +--- a/server/protocol.c ++++ b/server/protocol.c +@@ -1666,23 +1666,29 @@ AP_DECLARE(void) ap_set_sub_req_protocol(request_rec *rnew, + rnew->main = (request_rec *) r; + } + +-static void end_output_stream(request_rec *r) ++static void end_output_stream(request_rec *r, int status) + { + conn_rec *c = r->connection; + apr_bucket_brigade *bb; + apr_bucket *b; + + bb = apr_brigade_create(r->pool, c->bucket_alloc); ++ if (status != OK) { ++ b = ap_bucket_error_create(status, NULL, r->pool, c->bucket_alloc); ++ APR_BRIGADE_INSERT_TAIL(bb, b); ++ } + b = apr_bucket_eos_create(c->bucket_alloc); + APR_BRIGADE_INSERT_TAIL(bb, b); ++ + ap_pass_brigade(r->output_filters, bb); ++ apr_brigade_cleanup(bb); + } + + AP_DECLARE(void) ap_finalize_sub_req_protocol(request_rec *sub) + { + /* tell the filter chain there is no more content coming */ + if (!sub->eos_sent) { +- end_output_stream(sub); ++ end_output_stream(sub, OK); + } + } + +@@ -1693,11 +1699,11 @@ AP_DECLARE(void) ap_finalize_sub_req_protocol(request_rec *sub) + */ + AP_DECLARE(void) ap_finalize_request_protocol(request_rec *r) + { +- (void) ap_discard_request_body(r); ++ int status = ap_discard_request_body(r); + + /* tell the filter chain there is no more content coming */ + if (!r->eos_sent) { +- end_output_stream(r); ++ end_output_stream(r, status); + } + } + diff --git a/SPECS/httpd.spec b/SPECS/httpd.spec index 5bd64d6..9811d47 100644 --- a/SPECS/httpd.spec +++ b/SPECS/httpd.spec @@ -13,7 +13,7 @@ Summary: Apache HTTP Server Name: httpd Version: 2.4.37 -Release: 43%{?dist}.2 +Release: 43%{?dist}.3 URL: https://httpd.apache.org/ Source0: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2 Source2: httpd.logrotate @@ -202,6 +202,8 @@ Patch216: httpd-2.4.37-CVE-2021-44790.patch Patch217: httpd-2.4.37-CVE-2021-34798.patch # https://bugzilla.redhat.com/show_bug.cgi?id=2005119 Patch218: httpd-2.4.37-CVE-2021-39275.patch +# https://bugzilla.redhat.com/show_bug.cgi?id=2064321# +Patch219: httpd-2.4.37-CVE-2022-22720.patch License: ASL 2.0 Group: System Environment/Daemons @@ -400,6 +402,7 @@ interface for storing and accessing per-user session data. %patch216 -p1 -b .CVE-2021-44790 %patch217 -p1 -b .CVE-2021-34798 %patch218 -p1 -b .CVE-2021-39275 +%patch219 -p1 -b .CVE-2022-22720 # Patch in the vendor string sed -i '/^#define PLATFORM/s/Unix/%{vstring}/' os/unix/os.h @@ -905,6 +908,10 @@ rm -rf $RPM_BUILD_ROOT %{_rpmconfigdir}/macros.d/macros.httpd %changelog +* Mon Mar 21 2022 Luboš Uhliarik - 2.4.37-43.3 +- Resolves: #2065247 - CVE-2022-22720 httpd:2.4/httpd: HTTP request smuggling + vulnerability in Apache HTTP Server 2.4.52 and earlier + * Fri Feb 25 2022 Luboš Uhliarik - 2.4.37-43.2 - Resolves: #2059256 - CVE-2021-34798 httpd:2.4/httpd: NULL pointer dereference via malformed requests