import mod_http2-1.15.19-5.el9_3.1

.mod_http2.checksum

-e1a2cc87e2b3b10c2a2940fefe6b469e2c779f5c3a203b262f9a9a48221d0711
+9e2e7d021b97177da4b76649ac9f233acdf566a8806f1715ea34d8e2b2448c6f

SOURCES/mod_http2-1.15.19-CVE-2024-27316.patch

+From 134e28ae5abc997fe064995627b3ebe247a5d5d8 Mon Sep 17 00:00:00 2001
+From: Stefan Eissing <stefan@eissing.org>
+Date: Fri, 23 Feb 2024 15:13:56 +0100
+Subject: [PATCH] RESET stream after 100 failed incoming headers
+
+---
+ mod_http2/h2_session.c | 10 +++++++---
+ mod_http2/h2_stream.c  |  1 +
+ mod_http2/h2_stream.h  |  1 +
+ 3 files changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/mod_http2/h2_session.c b/mod_http2/h2_session.c
+index 1915855..d9c077a 100644
+--- a/mod_http2/h2_session.c
++++ b/mod_http2/h2_session.c
+@@ -311,9 +311,13 @@ static int on_header_cb(nghttp2_session *ngh2, const nghttp2_frame *frame,
+     
+     status = h2_stream_add_header(stream, (const char *)name, namelen,
+                                   (const char *)value, valuelen);
+-    if (status != APR_SUCCESS
+-        && (!stream->rtmp
+-            || stream->rtmp->http_status == H2_HTTP_STATUS_UNSET)) {
++    if (status != APR_SUCCESS &&
++        (!stream->rtmp ||
++         stream->rtmp->http_status == H2_HTTP_STATUS_UNSET ||
++         /* We accept a certain amount of failures in order to reply
++          * with an informative HTTP error response like 413. But of the
++          * client is too wrong, we fail the request an RESET the stream */
++         stream->request_headers_failed > 100)) {
+         return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
+     }
+     return 0;
+diff --git a/mod_http2/h2_stream.c b/mod_http2/h2_stream.c
+index 4fec537..2b2caaf 100644
+--- a/mod_http2/h2_stream.c
++++ b/mod_http2/h2_stream.c
+@@ -764,6 +764,7 @@ apr_status_t h2_stream_add_header(h2_stream *stream,
+     
+ cleanup:
+     if (error) {
++        ++stream->request_headers_failed;
+         set_error_response(stream, error);
+         return APR_EINVAL; 
+     }
+diff --git a/mod_http2/h2_stream.h b/mod_http2/h2_stream.h
+index 08f7888..baf8b50 100644
+--- a/mod_http2/h2_stream.h
++++ b/mod_http2/h2_stream.h
+@@ -75,6 +75,7 @@ struct h2_stream {
+     struct h2_request *rtmp;    /* request being assembled */
+     apr_table_t *trailers;      /* optional incoming trailers */
+     int request_headers_added;  /* number of request headers added */
++    int request_headers_failed; /* number of request headers failed to add */
+     
+     struct h2_bucket_beam *input;
+     apr_bucket_brigade *in_buffer;

SPECS/mod_http2.spec

@@ -3,7 +3,7 @@
 
 Name:		mod_http2
 Version:	1.15.19
-Release:	5%{?dist}
+Release:	5%{?dist}.1
 Summary:	module implementing HTTP/2 for Apache 2
 License:	ASL 2.0
 URL:		https://icing.github.io/mod_h2/
@@ -16,6 +16,8 @@ Patch2:         mod_http2-1.15.14-openssl30.patch
 Patch100:       mod_http2-1.15.19-CVE-2021-44224.patch
 # https://bugzilla.redhat.com/show_bug.cgi?id=2176209
 Patch101:       mod_http2-1.15.19-CVE-2023-25690.patch
+# https://bugzilla.redhat.com/show_bug.cgi?id=2268277
+Patch102:       mod_http2-1.15.19-CVE-2024-27316.patch
 
 BuildRequires: make
 BuildRequires:  gcc
@@ -36,6 +38,7 @@ top of libnghttp2 for httpd 2.4 servers.
 
 %patch100 -p1 -b .CVE-2021-44224
 %patch101 -p1 -b .CVE-2023-25690
+%patch102 -p1 -b .CVE-2024-27316
 
 %build
 autoreconf -i
@@ -60,6 +63,10 @@ echo "LoadModule proxy_http2_module modules/mod_proxy_http2.so" > %{buildroot}%{
 %{_httpd_moddir}/mod_proxy_http2.so
 
 %changelog
+* Fri Apr 05 2024 Luboš Uhliarik <luhliari@redhat.com> - 1.15.19-5.1
+- Resolves: RHEL-29826 - mod_http2: httpd: CONTINUATION frames
+  DoS (CVE-2024-27316)
+
 * Wed Aug 16 2023 Luboš Uhliarik <luhliari@redhat.com> - 1.15.19-5
 - Resolves: #2177753 - CVE-2023-25690 httpd: HTTP request splitting with
   mod_rewrite and mod_proxy