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Merge branch 'c9-beta' into a9-beta

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eabdullin 2024-09-30 16:11:13 +00:00 committed by eabdullin
commit 9c53979d46
10 changed files with 554 additions and 9 deletions
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4
.gitignore vendored
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@ -1,4 +1,2 @@
SOURCES/maxim.key
SOURCES/mdounin.key
SOURCES/nginx-1.20.1.tar.gz SOURCES/nginx-1.20.1.tar.gz
SOURCES/sb.key SOURCES/nginx-logo.png

4
.nginx.metadata
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@ -1,4 +1,2 @@
fe1bb3869c51a54f28e7e7a2c1d8a790a2ca7789 SOURCES/maxim.key
145bf87154a2689f7c09a376c11f307012a439de SOURCES/mdounin.key
6b4ab4eff3c617e133819f43fdfc14708e593a79 SOURCES/nginx-1.20.1.tar.gz 6b4ab4eff3c617e133819f43fdfc14708e593a79 SOURCES/nginx-1.20.1.tar.gz
baa71c22e4e2b67be2a5f4f4df25a99962488f90 SOURCES/sb.key e28dd656984cc2894d8124c5278789c656f6a9cb SOURCES/nginx-logo.png

74
SOURCES/0008-CVE-2023-44487-HTTP-2-per-iteration-stream-handling.patch Normal file
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@ -0,0 +1,74 @@
From b6aa9504cdfb6391d895dcbddc87b9260ea6968c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Uhliarik?= <luhliari@redhat.com>
Date: Wed, 11 Oct 2023 09:59:23 +0200
Subject: [PATCH] CVE-2023-44487 - HTTP/2: per-iteration stream handling limit.
To ensure that attempts to flood servers with many streams are detected
early, a limit of no more than 2 * max_concurrent_streams new streams per one
event loop iteration was introduced. This limit is applied even if
max_concurrent_streams is not yet reached - for example, if corresponding
streams are handled synchronously or reset.
Further, refused streams are now limited to maximum of max_concurrent_streams
and 100, similarly to priority_limit initial value, providing some tolerance
to clients trying to open several streams at the connection start, yet
low tolerance to flooding attempts.
---
src/http/v2/ngx_http_v2.c | 15 +++++++++++++++
src/http/v2/ngx_http_v2.h | 2 ++
2 files changed, 17 insertions(+)
diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
index 3611a2e..291677a 100644
--- a/src/http/v2/ngx_http_v2.c
+++ b/src/http/v2/ngx_http_v2.c
@@ -361,6 +361,7 @@ ngx_http_v2_read_handler(ngx_event_t *rev)
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http2 read handler");
h2c->blocked = 1;
+ h2c->new_streams = 0;
if (c->close) {
c->close = 0;
@@ -1320,6 +1321,14 @@ ngx_http_v2_state_headers(ngx_http_v2_connection_t *h2c, u_char *pos,
goto rst_stream;
}
+ if (h2c->new_streams++ >= 2 * h2scf->concurrent_streams) {
+ ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
+ "client sent too many streams at once");
+
+ status = NGX_HTTP_V2_REFUSED_STREAM;
+ goto rst_stream;
+ }
+
if (!h2c->settings_ack
&& !(h2c->state.flags & NGX_HTTP_V2_END_STREAM_FLAG)
&& h2scf->preread_size < NGX_HTTP_V2_DEFAULT_WINDOW)
@@ -1385,6 +1394,12 @@ ngx_http_v2_state_headers(ngx_http_v2_connection_t *h2c, u_char *pos,
rst_stream:
+ if (h2c->refused_streams++ > ngx_max(h2scf->concurrent_streams, 100)) {
+ ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
+ "client sent too many refused streams");
+ return ngx_http_v2_connection_error(h2c, NGX_HTTP_V2_NO_ERROR);
+ }
+
if (ngx_http_v2_send_rst_stream(h2c, h2c->state.sid, status) != NGX_OK) {
return ngx_http_v2_connection_error(h2c, NGX_HTTP_V2_INTERNAL_ERROR);
}
diff --git a/src/http/v2/ngx_http_v2.h b/src/http/v2/ngx_http_v2.h
index 3492297..6a7aaa6 100644
--- a/src/http/v2/ngx_http_v2.h
+++ b/src/http/v2/ngx_http_v2.h
@@ -125,6 +125,8 @@ struct ngx_http_v2_connection_s {
ngx_uint_t processing;
ngx_uint_t frames;
ngx_uint_t idle;
+ ngx_uint_t new_streams;
+ ngx_uint_t refused_streams;
ngx_uint_t priority_limit;
ngx_uint_t pushing;

126
SOURCES/0009-defer-ENGINE_finish-calls-to-a-cleanup.patch Normal file
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@ -0,0 +1,126 @@
From f177201770c75e72ff9c4686b0488a1c4344140c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Uhliarik?= <luhliari@redhat.com>
Date: Mon, 10 Jun 2024 18:22:34 +0200
Subject: [PATCH] defer ENGINE_finish() calls to a cleanup
---
src/event/ngx_event_openssl.c | 51 +++++++++++++++++++++++++++--------
1 file changed, 40 insertions(+), 11 deletions(-)
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index 2b3c576..b3f06ea 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -17,7 +17,7 @@ typedef struct {
ngx_uint_t engine; /* unsigned engine:1; */
} ngx_openssl_conf_t;
-
+static ngx_int_t ngx_ssl_engine_cleanup(void *data);
static X509 *ngx_ssl_load_certificate(ngx_pool_t *pool, char **err,
ngx_str_t *cert, STACK_OF(X509) **chain);
static EVP_PKEY *ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
@@ -137,6 +137,15 @@ int ngx_ssl_certificate_name_index;
int ngx_ssl_stapling_index;
+static ngx_int_t
+ngx_ssl_engine_cleanup(void *data){
+ ENGINE *e = data;
+
+ ENGINE_finish(e);
+
+ return NGX_OK;
+}
+
ngx_int_t
ngx_ssl_init(ngx_log_t *log)
{
@@ -628,8 +637,9 @@ ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
#ifndef OPENSSL_NO_ENGINE
- u_char *p, *last;
- ENGINE *engine;
+ u_char *p, *last;
+ ENGINE *engine;
+ ngx_pool_cleanup_t *cln;
p = cert->data + sizeof("engine:") - 1;
last = (u_char *) ngx_strchr(p, ':');
@@ -654,6 +664,16 @@ ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
return NULL;
}
+ cln = ngx_pool_cleanup_add(pool, 0);
+ if (cln == NULL) {
+ *err = "failed to add ENGINE cleanup";
+ ENGINE_free(engine);
+ return NULL;
+ }
+
+ cln->handler = ngx_ssl_engine_cleanup;
+ cln->data = engine;
+
*last++ = ':';
struct {
@@ -667,7 +687,6 @@ ngx_ssl_load_certificate(ngx_pool_t *pool, char **err, ngx_str_t *cert,
return NULL;
}
- ENGINE_finish(engine);
ENGINE_free(engine);
/* set chain to null */
@@ -775,11 +794,13 @@ static EVP_PKEY *
ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
ngx_str_t *key, ngx_array_t *passwords)
{
- BIO *bio;
- EVP_PKEY *pkey;
- ngx_str_t *pwd;
- ngx_uint_t tries;
- pem_password_cb *cb;
+ BIO *bio;
+ EVP_PKEY *pkey;
+ ngx_str_t *pwd;
+ ngx_uint_t tries;
+ pem_password_cb *cb;
+ ngx_pool_cleanup_t *cln;
+
if (ngx_strncmp(key->data, "engine:", sizeof("engine:") - 1) == 0) {
@@ -811,18 +832,26 @@ ngx_ssl_load_certificate_key(ngx_pool_t *pool, char **err,
return NULL;
}
+ cln = ngx_pool_cleanup_add(pool, 0);
+ if (cln == NULL) {
+ *err = "failed to add ENGINE cleanup";
+ ENGINE_free(engine);
+ return NULL;
+ }
+
+ cln->handler = ngx_ssl_engine_cleanup;
+ cln->data = engine;
+
*last++ = ':';
pkey = ENGINE_load_private_key(engine, (char *) last, 0, 0);
if (pkey == NULL) {
*err = "ENGINE_load_private_key() failed";
- ENGINE_finish(engine);
ENGINE_free(engine);
return NULL;
}
- ENGINE_finish(engine);
ENGINE_free(engine);
return pkey;
--
2.44.0

183
SOURCES/0010-Optimized-chain-link-usage.patch Normal file
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@ -0,0 +1,183 @@
From f3bcc0bcfb6eda3f4874fe2531d546ba724c518c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Uhliarik?= <luhliari@redhat.com>
Date: Wed, 12 Jun 2024 12:49:28 +0200
Subject: [PATCH] Optimized chain link usage
Previously chain links could sometimes be dropped instead of being reused,
which could result in increased memory consumption during long requests.
---
src/core/ngx_output_chain.c | 10 ++++++++--
src/http/modules/ngx_http_grpc_module.c | 5 ++++-
.../modules/ngx_http_gunzip_filter_module.c | 18 ++++++++++++++----
src/http/modules/ngx_http_gzip_filter_module.c | 10 +++++++---
src/http/modules/ngx_http_ssi_filter_module.c | 8 ++++++--
src/http/modules/ngx_http_sub_filter_module.c | 8 ++++++--
6 files changed, 45 insertions(+), 14 deletions(-)
diff --git a/src/core/ngx_output_chain.c b/src/core/ngx_output_chain.c
index 5c3dbe8..4aa1b02 100644
--- a/src/core/ngx_output_chain.c
+++ b/src/core/ngx_output_chain.c
@@ -121,7 +121,10 @@ ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in)
ngx_debug_point();
- ctx->in = ctx->in->next;
+ cl = ctx->in;
+ ctx->in = cl->next;
+
+ ngx_free_chain(ctx->pool, cl);
continue;
}
@@ -207,7 +210,10 @@ ngx_output_chain(ngx_output_chain_ctx_t *ctx, ngx_chain_t *in)
/* delete the completed buf from the ctx->in chain */
if (ngx_buf_size(ctx->in->buf) == 0) {
- ctx->in = ctx->in->next;
+ cl = ctx->in;
+ ctx->in = cl->next;
+
+ ngx_free_chain(ctx->pool, cl);
}
cl = ngx_alloc_chain_link(ctx->pool);
diff --git a/src/http/modules/ngx_http_grpc_module.c b/src/http/modules/ngx_http_grpc_module.c
index 53bc547..9f13089 100644
--- a/src/http/modules/ngx_http_grpc_module.c
+++ b/src/http/modules/ngx_http_grpc_module.c
@@ -1230,7 +1230,7 @@ ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in)
ngx_buf_t *b;
ngx_int_t rc;
ngx_uint_t next, last;
- ngx_chain_t *cl, *out, **ll;
+ ngx_chain_t *cl, *out, *ln, **ll;
ngx_http_upstream_t *u;
ngx_http_grpc_ctx_t *ctx;
ngx_http_grpc_frame_t *f;
@@ -1458,7 +1458,10 @@ ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in)
last = 1;
}
+ ln = in;
in = in->next;
+
+ ngx_free_chain(r->pool, ln);
}
ctx->in = in;
diff --git a/src/http/modules/ngx_http_gunzip_filter_module.c b/src/http/modules/ngx_http_gunzip_filter_module.c
index c1341f5..5d170a1 100644
--- a/src/http/modules/ngx_http_gunzip_filter_module.c
+++ b/src/http/modules/ngx_http_gunzip_filter_module.c
@@ -333,6 +333,8 @@ static ngx_int_t
ngx_http_gunzip_filter_add_data(ngx_http_request_t *r,
ngx_http_gunzip_ctx_t *ctx)
{
+ ngx_chain_t *cl;
+
if (ctx->zstream.avail_in || ctx->flush != Z_NO_FLUSH || ctx->redo) {
return NGX_OK;
}
@@ -344,8 +346,11 @@ ngx_http_gunzip_filter_add_data(ngx_http_request_t *r,
return NGX_DECLINED;
}
- ctx->in_buf = ctx->in->buf;
- ctx->in = ctx->in->next;
+ cl = ctx->in;
+ ctx->in_buf = cl->buf;
+ ctx->in = cl->next;
+
+ ngx_free_chain(r->pool, cl);
ctx->zstream.next_in = ctx->in_buf->pos;
ctx->zstream.avail_in = ctx->in_buf->last - ctx->in_buf->pos;
@@ -374,6 +379,7 @@ static ngx_int_t
ngx_http_gunzip_filter_get_buf(ngx_http_request_t *r,
ngx_http_gunzip_ctx_t *ctx)
{
+ ngx_chain_t *cl;
ngx_http_gunzip_conf_t *conf;
if (ctx->zstream.avail_out) {
@@ -383,8 +389,12 @@ ngx_http_gunzip_filter_get_buf(ngx_http_request_t *r,
conf = ngx_http_get_module_loc_conf(r, ngx_http_gunzip_filter_module);
if (ctx->free) {
- ctx->out_buf = ctx->free->buf;
- ctx->free = ctx->free->next;
+
+ cl = ctx->free;
+ ctx->out_buf = cl->buf;
+ ctx->free = cl->next;
+
+ ngx_free_chain(r->pool, cl);
ctx->out_buf->flush = 0;
diff --git a/src/http/modules/ngx_http_gzip_filter_module.c b/src/http/modules/ngx_http_gzip_filter_module.c
index b8c5ccc..1d17a6d 100644
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -978,10 +978,14 @@ static void
ngx_http_gzip_filter_free_copy_buf(ngx_http_request_t *r,
ngx_http_gzip_ctx_t *ctx)
{
- ngx_chain_t *cl;
+ ngx_chain_t *cl, *ln;
+
+ for (cl = ctx->copied; cl; /* void */) {
+ ln = cl;
+ cl = cl->next;
- for (cl = ctx->copied; cl; cl = cl->next) {
- ngx_pfree(r->pool, cl->buf->start);
+ ngx_pfree(r->pool, ln->buf->start);
+ ngx_free_chain(r->pool, ln);
}
ctx->copied = NULL;
diff --git a/src/http/modules/ngx_http_ssi_filter_module.c b/src/http/modules/ngx_http_ssi_filter_module.c
index 6737965..a55f6e5 100644
--- a/src/http/modules/ngx_http_ssi_filter_module.c
+++ b/src/http/modules/ngx_http_ssi_filter_module.c
@@ -455,9 +455,13 @@ ngx_http_ssi_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
while (ctx->in || ctx->buf) {
if (ctx->buf == NULL) {
- ctx->buf = ctx->in->buf;
- ctx->in = ctx->in->next;
+
+ cl = ctx->in;
+ ctx->buf = cl->buf;
+ ctx->in = cl->next;
ctx->pos = ctx->buf->pos;
+
+ ngx_free_chain(r->pool, cl);
}
if (ctx->state == ssi_start_state) {
diff --git a/src/http/modules/ngx_http_sub_filter_module.c b/src/http/modules/ngx_http_sub_filter_module.c
index 6d3de59..456bb27 100644
--- a/src/http/modules/ngx_http_sub_filter_module.c
+++ b/src/http/modules/ngx_http_sub_filter_module.c
@@ -335,9 +335,13 @@ ngx_http_sub_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
while (ctx->in || ctx->buf) {
if (ctx->buf == NULL) {
- ctx->buf = ctx->in->buf;
- ctx->in = ctx->in->next;
+
+ cl = ctx->in;
+ ctx->buf = cl->buf;
+ ctx->in = cl->next;
ctx->pos = ctx->buf->pos;
+
+ ngx_free_chain(r->pool, cl);
}
if (ctx->buf->flush || ctx->buf->recycled) {
--
2.44.0

69
SOURCES/maxim.key Normal file
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@ -0,0 +1,69 @@
-----BEGIN PGP PUBLIC KEY BLOCK-----
mQINBF4TqFoBEADNbls05thIAYVVKdMDRdtzGk7HXGqx60u/kh4BL9HskUpyYFTp
N07RJ1TyyusfD7I3skuGHvtQhqdTwHPDEPL5qrAnHps9XWUQrtU7hflcIKt43iDe
TvfVVhN0nPir2++C4qvNnrC/UCisyz00H/I9mobl2qzyKyLT8BnUBVuXDfOTlUCY
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rPyBYwb7xyycQzqmJiD7Qm9OeVHmZj5rG5hGM14MyTSUVJle0U+CJCF9lmfVuR/c
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g4BI4mZp+IuxaP+S+ckaRf1CUvRAJuLTqUeBSuOzjag+ibD6rqusuZ1MZqLxnXyu
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Z1AqsTfp6ZBC1vITE9+b0zBw6qq/nGD0Iq47Vp1VxmlxmnoeR4ir8z/oSukPulLU
K3IqkmRNGEilINrtBt5jFbBlx8kwdCYvxEF6ymibBBqvwwv65jrrKheBQm+HrrVS
aMQmo4Qzj/h/ZLL9KENHibNwUypJnvwEvw0YkAyjICvoNzDUsM+92+B/ewARAQAB
tCFNYXhpbSBLb25vdmFsb3YgPG1heGltQG5naW54LmNvbT6JAlcEEwEKAEECGwMF
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SPECS/nginx.spec
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@ -39,9 +39,9 @@
Name: nginx Name: nginx
Epoch: 1 Epoch: 2
Version: 1.20.1 Version: 1.20.1
Release: 14%{?dist}.alma Release: 20%{?dist}.alma.1
Summary: A high performance web server and reverse proxy server Summary: A high performance web server and reverse proxy server
# BSD License (two clause) # BSD License (two clause)
@ -91,6 +91,15 @@ Patch5: 0006-Fix-ALPACA-security-issue.patch
# downstream patch for RHEL - https://bugzilla.redhat.com/show_bug.cgi?id=2028781 # downstream patch for RHEL - https://bugzilla.redhat.com/show_bug.cgi?id=2028781
Patch6: 0007-Enable-TLSv1.3-by-default.patch Patch6: 0007-Enable-TLSv1.3-by-default.patch
# security patch - https://issues.redhat.com/browse/RHEL-12518
Patch7: 0008-CVE-2023-44487-HTTP-2-per-iteration-stream-handling.patch
# downstream patch for RHEL - https://issues.redhat.com/browse/RHEL-40371
Patch8: 0009-defer-ENGINE_finish-calls-to-a-cleanup.patch
# upstream patch - https://issues.redhat.com/browse/RHEL-40075
Patch9: 0010-Optimized-chain-link-usage.patch
BuildRequires: make BuildRequires: make
BuildRequires: gcc BuildRequires: gcc
BuildRequires: gnupg2 BuildRequires: gnupg2
@ -602,9 +611,23 @@ fi
%changelog %changelog
* Wed Mar 29 2023 Eduard Abdullin <eabdullin@almalinux.org> - 1:1.20.1-14.alma * Mon Sep 30 2024 Eduard Abdullin <eabdullin@almalinux.org> - 2:1.20.1-20.alma.1
- Debrand for AlmaLinux - Debrand for AlmaLinux
* Mon Jul 15 2024 Luboš Uhliarik <luhliari@redhat.com> - 2:1.20.1-20
- Resolves: RHEL-40075 - nginx worker processes memory leak
* Mon Jun 10 2024 Luboš Uhliarik <luhliari@redhat.com> - 1:1.20.1-19
- Resolves: RHEL-40371- openssl 3.2 ENGINE regression
* Thu May 30 2024 Luboš Uhliarik <luhliari@redhat.com> - 2:1.20.1-17
- bump package epoch to resolve RHEL-33939
- Resolves: RHEL-33939 - Update path for nginx broken for existing CS
installations
* Mon Oct 16 2023 Luboš Uhliarik <luhliari@redhat.com> - 1:1.20.1-16
- Resolves: RHEL-12518 - nginx: HTTP/2: Multiple HTTP/2 enabled web servers are
vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
* Thu Nov 24 2022 Luboš Uhliarik <luhliari@redhat.com> - 1:1.20.1-14 * Thu Nov 24 2022 Luboš Uhliarik <luhliari@redhat.com> - 1:1.20.1-14
- Resolves: #2086527 - Fix logrotate config and nginx log dir permissions - Resolves: #2086527 - Fix logrotate config and nginx log dir permissions
* Wed Jun 22 2022 Luboš Uhliarik <luhliari@redhat.com> - 1:1.20.1-13 * Wed Jun 22 2022 Luboš Uhliarik <luhliari@redhat.com> - 1:1.20.1-13