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slava86 has added 1829fca74c
security fixed CVE-2023-44487
raw diff | patch
view file @ 1829fca74c
... ... --- /dev/null
... ... +++ b/CVE-2023-44487.patch
... ... @@ -0,0 +1,49 @@
1 
--- a/src/http/v2/ngx_http_v2.c	2023-04-11 04:45:34.000000000 +0300
2 
+++ b/src/http/v2/ngx_http_v2.c	2023-10-20 11:09:13.223333324 +0300
3 
@@ -361,6 +361,7 @@
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     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http2 read handler");
5
6 
     h2c->blocked = 1;
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+    h2c->new_streams = 0;
8
9 
     if (c->close) {
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         c->close = 0;
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@@ -1321,6 +1322,14 @@
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         goto rst_stream;
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     }
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+    if (h2c->new_streams++ >= 2 * h2scf->concurrent_streams) {
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+        ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
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+                      "client sent too many streams at once");
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+
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+        status = NGX_HTTP_V2_REFUSED_STREAM;
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+        goto rst_stream;
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+    }
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+
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     if (!h2c->settings_ack
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         && !(h2c->state.flags & NGX_HTTP_V2_END_STREAM_FLAG)
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         && h2scf->preread_size < NGX_HTTP_V2_DEFAULT_WINDOW)
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@@ -1386,6 +1395,12 @@
27
28 
 rst_stream:
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+    if (h2c->refused_streams++ > ngx_max(h2scf->concurrent_streams, 100)) {
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+        ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
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+                      "client sent too many refused streams");
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+        return ngx_http_v2_connection_error(h2c, NGX_HTTP_V2_NO_ERROR);
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+    }
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+
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     if (ngx_http_v2_send_rst_stream(h2c, h2c->state.sid, status) != NGX_OK) {
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         return ngx_http_v2_connection_error(h2c, NGX_HTTP_V2_INTERNAL_ERROR);
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     }
39 
--- a/src/http/v2/ngx_http_v2.h	2023-04-11 04:45:34.000000000 +0300
40 
+++ b/src/http/v2/ngx_http_v2.h	2023-10-20 11:11:35.989999994 +0300
41 
@@ -124,6 +124,8 @@
42 
     ngx_uint_t                       processing;
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     ngx_uint_t                       frames;
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     ngx_uint_t                       idle;
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+    ngx_uint_t                       new_streams;
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+    ngx_uint_t                       refused_streams;
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     ngx_uint_t                       priority_limit;
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49 
     ngx_uint_t                       pushing;
view file @ 1829fca74c
... ... --- a/nginx.spec
... ... +++ b/nginx.spec
... ... @@ -34,7 +34,7 @@
34 34 
Summary:	Robust, small and high performance HTTP and reverse proxy server
35 35 
Name:		nginx
36 36 
Version:	1.24.0
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Release:	2
37 
Release:	3
38 38 
Epoch:		2
39 39 
# BSD License (two clause)
40 40 
# http://www.freebsd.org/copyright/freebsd-license.html
... ... @@ -57,6 +57,8 @@ Source100: index.html
… …
57 57 
Source102:	nginx-logo.png
58 58 
Source103:	50x.html
59 59 
Source104:	404.html
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# https://mailman.nginx.org/pipermail/nginx-devel/2023-October/S36Q5HBXR7CAIMPLLPRSSSYR4PCMWILK.html
61 
Patch0:		CVE-2023-44487.patch
60 62 
BuildRequires:	systemd-units
61 63 
BuildRequires:	gd-devel
62 64 
BuildRequires:	perl-devel
... ... @@ -315,6 +317,8 @@ tar -xf %{SOURCE15}
… …
317 317 
tar -xf %{SOURCE16}
318 318 
tar -xf %{SOURCE17}
319 319
320 
%patch0 -p1
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320 322 
%build
321 323 
%setup_compile_flags
322 324

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