Add patch to fix CVE-2023-27522

SOURCES/httpd-2.4.37-CVE-2023-27522.patch

@@ -0,0 +1,107 @@
+From 45e46db92b5387fdaf6c57e65ac9716c9b8574da Mon Sep 17 00:00:00 2001
+From: Pavel Mayorov <pmayorov@cloudlinux.com>
+Date: Wed, 15 Mar 2023 14:00:11 +0300
+Subject: [PATCH] CVE-2023-27522
+Taken main fix from the following upstream commit:
+    commit d753ea76b5972a85349b68c31b59d04c60014f2d
+    Author: Eric Covener <covener@apache.org>
+    Date:   Sun Mar 5 20:22:52 2023 +0000
+    Merge r1907980 from trunk:
+    mod_proxy_uwsgi: Stricter backend HTTP response parsing/validation
+    Reviewed By: ylavic, covener, gbechis, rpluem
+    git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1908094 13f79535-47bb-0310-9956-ffa450edef68
+Signed-off-by: Pavel Mayorov <pmayorov@cloudlinux.com>
+---
+ modules/proxy/mod_proxy_uwsgi.c | 49 +++++++++++++++++++++++----------
+ 1 file changed, 35 insertions(+), 14 deletions(-)
+diff --git a/modules/proxy/mod_proxy_uwsgi.c b/modules/proxy/mod_proxy_uwsgi.c
+index 9dcbed1..a1b564d 100644
+--- a/modules/proxy/mod_proxy_uwsgi.c
++++ b/modules/proxy/mod_proxy_uwsgi.c
+@@ -304,18 +304,16 @@ static int uwsgi_response(request_rec *r, proxy_conn_rec * backend,
+     pass_bb = apr_brigade_create(r->pool, c->bucket_alloc);
+ 
+     len = ap_getline(buffer, sizeof(buffer), rp, 1);
+-
+     if (len <= 0) {
+-        /* oops */
++        /* invalid or empty */
+         return HTTP_INTERNAL_SERVER_ERROR;
+     }
+-
+     backend->worker->s->read += len;
+-
+-    if (len >= sizeof(buffer) - 1) {
+-        /* oops */
++    if ((apr_size_t)len >= sizeof(buffer)) {
++        /* too long */
+         return HTTP_INTERNAL_SERVER_ERROR;
+     }
++
+     /* Position of http status code */
+     if (apr_date_checkmask(buffer, "HTTP/#.# ###*")) {
+         status_start = 9;
+@@ -324,8 +322,8 @@ static int uwsgi_response(request_rec *r, proxy_conn_rec * backend,
+         status_start = 7;
+     }
+     else {
+-        /* oops */
+-        return HTTP_INTERNAL_SERVER_ERROR;
++        /* not HTTP */
++        return HTTP_BAD_GATEWAY;
+     }
+     status_end = status_start + 3;
+ 
+@@ -345,21 +343,44 @@ static int uwsgi_response(request_rec *r, proxy_conn_rec * backend,
+     }
+     r->status_line = apr_pstrdup(r->pool, &buffer[status_start]);
+ 
+-    /* start parsing headers */
++    /* parse headers */
+     while ((len = ap_getline(buffer, sizeof(buffer), rp, 1)) > 0) {
++        if ((apr_size_t)len >= sizeof(buffer)) {
++            /* too long */
++            len = -1;
++            break;
++        }
+         value = strchr(buffer, ':');
+-        /* invalid header skip */
+-        if (!value)
+-            continue;
+-        *value = '\0';
+-        ++value;
++        if (!value) {
++            /* invalid header */
++            len = -1;
++            break;
++        }
++        *value++ = '\0';
++        if (*ap_scan_http_token(buffer)) {
++            /* invalid name */
++            len = -1;
++            break;
++        }
+         while (apr_isspace(*value))
+             ++value;
+         for (end = &value[strlen(value) - 1];
+              end > value && apr_isspace(*end); --end)
+             *end = '\0';
++        if (*ap_scan_http_field_content(value)) {
++            /* invalid value */
++            len = -1;
++            break;
++        }
+         apr_table_add(r->headers_out, buffer, value);
+     }
++    if (len < 0) {
++        /* Reset headers, but not to NULL because things below the chain expect
++         * this to be non NULL e.g. the ap_content_length_filter.
++         */
++        r->headers_out = apr_table_make(r->pool, 1);
++        return HTTP_BAD_GATEWAY;
++    }
+ 
+     if ((buf = apr_table_get(r->headers_out, "Content-Type"))) {
+         ap_set_content_type(r, apr_pstrdup(r->pool, buf));
+-- 
+2.39.2

SPECS/httpd.spec

@@ -13,7 +13,7 @@
 Summary: Apache HTTP Server
 Name: httpd
 Version: 2.4.53
-Release: 11%{?dist}.5
+Release: 11%{?dist}.5.alma
 URL: https://httpd.apache.org/
 Source0: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2
 Source1: https://www.apache.org/dist/httpd/httpd-%{version}.tar.bz2.asc
@@ -141,6 +141,9 @@ Patch209: httpd-2.4.53-CVE-2022-36760.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=2176209
 Patch210: httpd-2.4.53-CVE-2023-25690.patch
 
+# AlmaLinux patches
+Patch1000: httpd-2.4.37-CVE-2023-27522.patch
+
 License: ASL 2.0
 BuildRequires: gcc, autoconf, pkgconfig, findutils, xmlto
 BuildRequires: perl-interpreter, perl-generators, systemd-devel
@@ -321,6 +324,9 @@ written in the Lua programming language.
 %patch209 -p1 -b .CVE-2022-36760
 %patch210 -p1 -b .CVE-2023-25690
 
+
+%patch1000 -p1 -b .CVE-2023-27522
+
 # Patch in the vendor string
 sed -i '/^#define PLATFORM/s/Unix/%{vstring}/' os/unix/os.h
 sed -i 's/@RELEASE@/%{release}/' server/core.c
@@ -879,6 +885,9 @@ exit $rv
 %{_rpmconfigdir}/macros.d/macros.httpd
 
 %changelog
+* Tue Aug 01 2023 Eduard Abdullin <eabdullin@almalinux.org> - 2.4.53-11.5.alma
+- Add patch to fix CVE-2023-27522
+
 * Fri Apr 28 2023 Luboš Uhliarik <luhliari@redhat.com> - 2.4.53-11.5
 - Resolves: #2190324 - mod_rewrite regression with CVE-2023-25690