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nodejs/SOURCES/nodejs-CVE-2024-22019.patch

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Fix CVE-2024-22019
Resolves: RHEL-28064
This is a combination of the upstream commit from v18:
https://github.com/nodejs/node/commit/911cb33cdadab57a75f97186290ea8f3903a6171
and necessary rebase of llhttp from 6.0.11 to 6.1.0 that has the needed
chunk features.
From 11bd886e0a4eadd7e55502758fff6486a3fa3a4e Mon Sep 17 00:00:00 2001
From: Paolo Insogna <paolo@cowtech.it>
Date: Tue, 9 Jan 2024 18:10:04 +0100
Subject: [PATCH] http: add maximum chunk extension size
Cherry-picked from v18 patch:
https://github.com/nodejs/node/commit/911cb33cdadab57a75f97186290ea8f3903a6171
PR-URL: https://github.com/nodejs-private/node-private/pull/520
Refs: https://github.com/nodejs-private/node-private/pull/518
CVE-ID: CVE-2024-22019
---
deps/llhttp/.gitignore | 1 +
deps/llhttp/CMakeLists.txt | 2 +-
deps/llhttp/include/llhttp.h | 7 +-
deps/llhttp/src/api.c | 7 +
deps/llhttp/src/llhttp.c | 122 ++++++++++++++--
doc/api/errors.md | 12 ++
lib/_http_server.js | 9 ++
src/node_http_parser.cc | 20 ++-
.../test-http-chunk-extensions-limit.js | 131 ++++++++++++++++++
tools/update-llhttp.sh | 2 +-
10 files changed, 294 insertions(+), 19 deletions(-)
create mode 100644 deps/llhttp/.gitignore
create mode 100644 test/parallel/test-http-chunk-extensions-limit.js
diff --git a/deps/llhttp/.gitignore b/deps/llhttp/.gitignore
new file mode 100644
index 0000000000..98438a2cd3
--- /dev/null
+++ b/deps/llhttp/.gitignore
@@ -0,0 +1 @@
+libllhttp.pc
diff --git a/deps/llhttp/CMakeLists.txt b/deps/llhttp/CMakeLists.txt
index d0382038b9..747564a76f 100644
--- a/deps/llhttp/CMakeLists.txt
+++ b/deps/llhttp/CMakeLists.txt
@@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.5.1)
cmake_policy(SET CMP0069 NEW)
-project(llhttp VERSION 6.0.11)
+project(llhttp VERSION 6.1.0)
include(GNUInstallDirs)
set(CMAKE_C_STANDARD 99)
diff --git a/deps/llhttp/include/llhttp.h b/deps/llhttp/include/llhttp.h
index 2da66f15e6..78f27abc03 100644
--- a/deps/llhttp/include/llhttp.h
+++ b/deps/llhttp/include/llhttp.h
@@ -2,8 +2,8 @@
#define INCLUDE_LLHTTP_H_
#define LLHTTP_VERSION_MAJOR 6
-#define LLHTTP_VERSION_MINOR 0
-#define LLHTTP_VERSION_PATCH 11
+#define LLHTTP_VERSION_MINOR 1
+#define LLHTTP_VERSION_PATCH 0
#ifndef LLHTTP_STRICT_MODE
# define LLHTTP_STRICT_MODE 0
@@ -348,6 +348,9 @@ struct llhttp_settings_s {
*/
llhttp_cb on_headers_complete;
+ /* Possible return values 0, -1, HPE_USER */
+ llhttp_data_cb on_chunk_parameters;
+
/* Possible return values 0, -1, HPE_USER */
llhttp_data_cb on_body;
diff --git a/deps/llhttp/src/api.c b/deps/llhttp/src/api.c
index c4ce197c58..d3065b3664 100644
--- a/deps/llhttp/src/api.c
+++ b/deps/llhttp/src/api.c
@@ -355,6 +355,13 @@ int llhttp__on_chunk_header(llhttp_t* s, const char* p, const char* endp) {
}
+int llhttp__on_chunk_parameters(llhttp_t* s, const char* p, const char* endp) {
+ int err;
+ SPAN_CALLBACK_MAYBE(s, on_chunk_parameters, p, endp - p);
+ return err;
+}
+
+
int llhttp__on_chunk_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_chunk_complete);
diff --git a/deps/llhttp/src/llhttp.c b/deps/llhttp/src/llhttp.c
index 5e7c5d1093..e6db6e3188 100644
--- a/deps/llhttp/src/llhttp.c
+++ b/deps/llhttp/src/llhttp.c
@@ -340,6 +340,8 @@ enum llparse_state_e {
s_n_llhttp__internal__n_invoke_is_equal_content_length,
s_n_llhttp__internal__n_chunk_size_almost_done,
s_n_llhttp__internal__n_chunk_parameters,
+ s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters,
+ s_n_llhttp__internal__n_chunk_parameters_ows,
s_n_llhttp__internal__n_chunk_size_otherwise,
s_n_llhttp__internal__n_chunk_size,
s_n_llhttp__internal__n_chunk_size_digit,
@@ -539,6 +541,10 @@ int llhttp__on_body(
llhttp__internal_t* s, const unsigned char* p,
const unsigned char* endp);
+int llhttp__on_chunk_parameters(
+ llhttp__internal_t* s, const unsigned char* p,
+ const unsigned char* endp);
+
int llhttp__on_status(
llhttp__internal_t* s, const unsigned char* p,
const unsigned char* endp);
@@ -1226,8 +1232,7 @@ static llparse_state_t llhttp__internal__run(
goto s_n_llhttp__internal__n_chunk_parameters;
}
case 2: {
- p++;
- goto s_n_llhttp__internal__n_chunk_size_almost_done;
+ goto s_n_llhttp__internal__n_span_end_llhttp__on_chunk_parameters;
}
default: {
goto s_n_llhttp__internal__n_error_10;
@@ -1236,6 +1241,34 @@ static llparse_state_t llhttp__internal__run(
/* UNREACHABLE */;
abort();
}
+ case s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters:
+ s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters: {
+ if (p == endp) {
+ return s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters;
+ }
+ state->_span_pos0 = (void*) p;
+ state->_span_cb0 = llhttp__on_chunk_parameters;
+ goto s_n_llhttp__internal__n_chunk_parameters;
+ /* UNREACHABLE */;
+ abort();
+ }
+ case s_n_llhttp__internal__n_chunk_parameters_ows:
+ s_n_llhttp__internal__n_chunk_parameters_ows: {
+ if (p == endp) {
+ return s_n_llhttp__internal__n_chunk_parameters_ows;
+ }
+ switch (*p) {
+ case ' ': {
+ p++;
+ goto s_n_llhttp__internal__n_chunk_parameters_ows;
+ }
+ default: {
+ goto s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters;
+ }
+ }
+ /* UNREACHABLE */;
+ abort();
+ }
case s_n_llhttp__internal__n_chunk_size_otherwise:
s_n_llhttp__internal__n_chunk_size_otherwise: {
if (p == endp) {
@@ -1246,13 +1279,9 @@ static llparse_state_t llhttp__internal__run(
p++;
goto s_n_llhttp__internal__n_chunk_size_almost_done;
}
- case ' ': {
- p++;
- goto s_n_llhttp__internal__n_chunk_parameters;
- }
case ';': {
p++;
- goto s_n_llhttp__internal__n_chunk_parameters;
+ goto s_n_llhttp__internal__n_chunk_parameters_ows;
}
default: {
goto s_n_llhttp__internal__n_error_11;
@@ -6074,6 +6103,24 @@ static llparse_state_t llhttp__internal__run(
/* UNREACHABLE */;
abort();
}
+ s_n_llhttp__internal__n_span_end_llhttp__on_chunk_parameters: {
+ const unsigned char* start;
+ int err;
+
+ start = state->_span_pos0;
+ state->_span_pos0 = NULL;
+ err = llhttp__on_chunk_parameters(state, start, p);
+ if (err != 0) {
+ state->error = err;
+ state->error_pos = (const char*) (p + 1);
+ state->_current = (void*) (intptr_t) s_n_llhttp__internal__n_chunk_size_almost_done;
+ return s_error;
+ }
+ p++;
+ goto s_n_llhttp__internal__n_chunk_size_almost_done;
+ /* UNREACHABLE */;
+ abort();
+ }
s_n_llhttp__internal__n_error_10: {
state->error = 0x2;
state->reason = "Invalid character in chunk parameters";
@@ -8441,6 +8488,8 @@ enum llparse_state_e {
s_n_llhttp__internal__n_invoke_is_equal_content_length,
s_n_llhttp__internal__n_chunk_size_almost_done,
s_n_llhttp__internal__n_chunk_parameters,
+ s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters,
+ s_n_llhttp__internal__n_chunk_parameters_ows,
s_n_llhttp__internal__n_chunk_size_otherwise,
s_n_llhttp__internal__n_chunk_size,
s_n_llhttp__internal__n_chunk_size_digit,
@@ -8635,6 +8684,10 @@ int llhttp__on_body(
llhttp__internal_t* s, const unsigned char* p,
const unsigned char* endp);
+int llhttp__on_chunk_parameters(
+ llhttp__internal_t* s, const unsigned char* p,
+ const unsigned char* endp);
+
int llhttp__on_status(
llhttp__internal_t* s, const unsigned char* p,
const unsigned char* endp);
@@ -9299,8 +9352,7 @@ static llparse_state_t llhttp__internal__run(
goto s_n_llhttp__internal__n_chunk_parameters;
}
case 2: {
- p++;
- goto s_n_llhttp__internal__n_chunk_size_almost_done;
+ goto s_n_llhttp__internal__n_span_end_llhttp__on_chunk_parameters;
}
default: {
goto s_n_llhttp__internal__n_error_6;
@@ -9309,6 +9361,34 @@ static llparse_state_t llhttp__internal__run(
/* UNREACHABLE */;
abort();
}
+ case s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters:
+ s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters: {
+ if (p == endp) {
+ return s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters;
+ }
+ state->_span_pos0 = (void*) p;
+ state->_span_cb0 = llhttp__on_chunk_parameters;
+ goto s_n_llhttp__internal__n_chunk_parameters;
+ /* UNREACHABLE */;
+ abort();
+ }
+ case s_n_llhttp__internal__n_chunk_parameters_ows:
+ s_n_llhttp__internal__n_chunk_parameters_ows: {
+ if (p == endp) {
+ return s_n_llhttp__internal__n_chunk_parameters_ows;
+ }
+ switch (*p) {
+ case ' ': {
+ p++;
+ goto s_n_llhttp__internal__n_chunk_parameters_ows;
+ }
+ default: {
+ goto s_n_llhttp__internal__n_span_start_llhttp__on_chunk_parameters;
+ }
+ }
+ /* UNREACHABLE */;
+ abort();
+ }
case s_n_llhttp__internal__n_chunk_size_otherwise:
s_n_llhttp__internal__n_chunk_size_otherwise: {
if (p == endp) {
@@ -9319,13 +9399,9 @@ static llparse_state_t llhttp__internal__run(
p++;
goto s_n_llhttp__internal__n_chunk_size_almost_done;
}
- case ' ': {
- p++;
- goto s_n_llhttp__internal__n_chunk_parameters;
- }
case ';': {
p++;
- goto s_n_llhttp__internal__n_chunk_parameters;
+ goto s_n_llhttp__internal__n_chunk_parameters_ows;
}
default: {
goto s_n_llhttp__internal__n_error_7;
@@ -13951,6 +14027,24 @@ static llparse_state_t llhttp__internal__run(
/* UNREACHABLE */;
abort();
}
+ s_n_llhttp__internal__n_span_end_llhttp__on_chunk_parameters: {
+ const unsigned char* start;
+ int err;
+
+ start = state->_span_pos0;
+ state->_span_pos0 = NULL;
+ err = llhttp__on_chunk_parameters(state, start, p);
+ if (err != 0) {
+ state->error = err;
+ state->error_pos = (const char*) (p + 1);
+ state->_current = (void*) (intptr_t) s_n_llhttp__internal__n_chunk_size_almost_done;
+ return s_error;
+ }
+ p++;
+ goto s_n_llhttp__internal__n_chunk_size_almost_done;
+ /* UNREACHABLE */;
+ abort();
+ }
s_n_llhttp__internal__n_error_6: {
state->error = 0x2;
state->reason = "Invalid character in chunk parameters";
diff --git a/doc/api/errors.md b/doc/api/errors.md
index dcf8744d8b..a76bfe528d 100644
--- a/doc/api/errors.md
+++ b/doc/api/errors.md
@@ -3043,6 +3043,18 @@ malconfigured clients, if more than 8 KiB of HTTP header data is received then
HTTP parsing will abort without a request or response object being created, and
an `Error` with this code will be emitted.
+<a id="HPE_CHUNK_EXTENSIONS_OVERFLOW"></a>
+
+### `HPE_CHUNK_EXTENSIONS_OVERFLOW`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+Too much data was received for a chunk extensions. In order to protect against
+malicious or malconfigured clients, if more than 16 KiB of data is received
+then an `Error` with this code will be emitted.
+
<a id="HPE_UNEXPECTED_CONTENT_LENGTH"></a>
### `HPE_UNEXPECTED_CONTENT_LENGTH`
diff --git a/lib/_http_server.js b/lib/_http_server.js
index 4e23266f63..325bce6f54 100644
--- a/lib/_http_server.js
+++ b/lib/_http_server.js
@@ -706,6 +706,12 @@ const requestHeaderFieldsTooLargeResponse = Buffer.from(
`HTTP/1.1 431 ${STATUS_CODES[431]}\r\n` +
'Connection: close\r\n\r\n', 'ascii'
);
+
+const requestChunkExtensionsTooLargeResponse = Buffer.from(
+ `HTTP/1.1 413 ${STATUS_CODES[413]}\r\n` +
+ 'Connection: close\r\n\r\n', 'ascii',
+);
+
function socketOnError(e) {
// Ignore further errors
this.removeListener('error', socketOnError);
@@ -719,6 +725,9 @@ function socketOnError(e) {
case 'HPE_HEADER_OVERFLOW':
response = requestHeaderFieldsTooLargeResponse;
break;
+ case 'HPE_CHUNK_EXTENSIONS_OVERFLOW':
+ response = requestChunkExtensionsTooLargeResponse;
+ break;
case 'ERR_HTTP_REQUEST_TIMEOUT':
response = requestTimeoutResponse;
break;
diff --git a/src/node_http_parser.cc b/src/node_http_parser.cc
index 74f32480b9..b92e8486ae 100644
--- a/src/node_http_parser.cc
+++ b/src/node_http_parser.cc
@@ -79,6 +79,8 @@ const uint32_t kOnExecute = 5;
const uint32_t kOnTimeout = 6;
// Any more fields than this will be flushed into JS
const size_t kMaxHeaderFieldsCount = 32;
+// Maximum size of chunk extensions
+const size_t kMaxChunkExtensionsSize = 16384;
const uint32_t kLenientNone = 0;
const uint32_t kLenientHeaders = 1 << 0;
@@ -206,6 +208,7 @@ class Parser : public AsyncWrap, public StreamListener {
int on_message_begin() {
num_fields_ = num_values_ = 0;
+ chunk_extensions_nread_ = 0;
url_.Reset();
status_message_.Reset();
header_parsing_start_time_ = uv_hrtime();
@@ -443,9 +446,22 @@ class Parser : public AsyncWrap, public StreamListener {
return 0;
}
- // Reset nread for the next chunk
+ int on_chunk_extension(const char* at, size_t length) {
+ chunk_extensions_nread_ += length;
+
+ if (chunk_extensions_nread_ > kMaxChunkExtensionsSize) {
+ llhttp_set_error_reason(&parser_,
+ "HPE_CHUNK_EXTENSIONS_OVERFLOW:Chunk extensions overflow");
+ return HPE_USER;
+ }
+
+ return 0;
+ }
+
+ // Reset nread for the next chunk and also reset the extensions counter
int on_chunk_header() {
header_nread_ = 0;
+ chunk_extensions_nread_ = 0;
return 0;
}
@@ -887,6 +903,7 @@ class Parser : public AsyncWrap, public StreamListener {
const char* current_buffer_data_;
bool pending_pause_ = false;
uint64_t header_nread_ = 0;
+ uint64_t chunk_extensions_nread_ = 0;
uint64_t max_http_header_size_;
uint64_t headers_timeout_;
uint64_t header_parsing_start_time_ = 0;
@@ -921,6 +938,7 @@ const llhttp_settings_t Parser::settings = {
Proxy<DataCall, &Parser::on_header_field>::Raw,
Proxy<DataCall, &Parser::on_header_value>::Raw,
Proxy<Call, &Parser::on_headers_complete>::Raw,
+ Proxy<DataCall, &Parser::on_chunk_extension>::Raw,
Proxy<DataCall, &Parser::on_body>::Raw,
Proxy<Call, &Parser::on_message_complete>::Raw,
Proxy<Call, &Parser::on_chunk_header>::Raw,
diff --git a/test/parallel/test-http-chunk-extensions-limit.js b/test/parallel/test-http-chunk-extensions-limit.js
new file mode 100644
index 0000000000..6868b3da6c
--- /dev/null
+++ b/test/parallel/test-http-chunk-extensions-limit.js
@@ -0,0 +1,131 @@
+'use strict';
+
+const common = require('../common');
+const http = require('http');
+const net = require('net');
+const assert = require('assert');
+
+// Verify that chunk extensions are limited in size when sent all together.
+{
+ const server = http.createServer((req, res) => {
+ req.on('end', () => {
+ res.writeHead(200, { 'Content-Type': 'text/plain' });
+ res.end('bye');
+ });
+
+ req.resume();
+ });
+
+ server.listen(0, () => {
+ const sock = net.connect(server.address().port);
+ let data = '';
+
+ sock.on('data', (chunk) => data += chunk.toString('utf-8'));
+
+ sock.on('end', common.mustCall(function() {
+ assert.strictEqual(data, 'HTTP/1.1 413 Payload Too Large\r\nConnection: close\r\n\r\n');
+ server.close();
+ }));
+
+ sock.end('' +
+ 'GET / HTTP/1.1\r\n' +
+ 'Host: localhost:8080\r\n' +
+ 'Transfer-Encoding: chunked\r\n\r\n' +
+ '2;' + 'A'.repeat(20000) + '=bar\r\nAA\r\n' +
+ '0\r\n\r\n'
+ );
+ });
+}
+
+// Verify that chunk extensions are limited in size when sent in intervals.
+{
+ const server = http.createServer((req, res) => {
+ req.on('end', () => {
+ res.writeHead(200, { 'Content-Type': 'text/plain' });
+ res.end('bye');
+ });
+
+ req.resume();
+ });
+
+ server.listen(0, () => {
+ const sock = net.connect(server.address().port);
+ let remaining = 20000;
+ let data = '';
+
+ const interval = setInterval(
+ () => {
+ if (remaining > 0) {
+ sock.write('A'.repeat(1000));
+ } else {
+ sock.write('=bar\r\nAA\r\n0\r\n\r\n');
+ clearInterval(interval);
+ }
+
+ remaining -= 1000;
+ },
+ common.platformTimeout(20),
+ ).unref();
+
+ sock.on('data', (chunk) => data += chunk.toString('utf-8'));
+
+ sock.on('end', common.mustCall(function() {
+ assert.strictEqual(data, 'HTTP/1.1 413 Payload Too Large\r\nConnection: close\r\n\r\n');
+ server.close();
+ }));
+
+ sock.write('' +
+ 'GET / HTTP/1.1\r\n' +
+ 'Host: localhost:8080\r\n' +
+ 'Transfer-Encoding: chunked\r\n\r\n' +
+ '2;'
+ );
+ });
+}
+
+// Verify the chunk extensions is correctly reset after a chunk
+{
+ const server = http.createServer((req, res) => {
+ req.on('end', () => {
+ res.writeHead(200, { 'content-type': 'text/plain', 'connection': 'close', 'date': 'now' });
+ res.end('bye');
+ });
+
+ req.resume();
+ });
+
+ server.listen(0, () => {
+ const sock = net.connect(server.address().port);
+ let data = '';
+
+ sock.on('data', (chunk) => data += chunk.toString('utf-8'));
+
+ sock.on('end', common.mustCall(function() {
+ assert.strictEqual(
+ data,
+ 'HTTP/1.1 200 OK\r\n' +
+ 'content-type: text/plain\r\n' +
+ 'connection: close\r\n' +
+ 'date: now\r\n' +
+ 'Transfer-Encoding: chunked\r\n' +
+ '\r\n' +
+ '3\r\n' +
+ 'bye\r\n' +
+ '0\r\n' +
+ '\r\n',
+ );
+
+ server.close();
+ }));
+
+ sock.end('' +
+ 'GET / HTTP/1.1\r\n' +
+ 'Host: localhost:8080\r\n' +
+ 'Transfer-Encoding: chunked\r\n\r\n' +
+ '2;' + 'A'.repeat(10000) + '=bar\r\nAA\r\n' +
+ '2;' + 'A'.repeat(10000) + '=bar\r\nAA\r\n' +
+ '2;' + 'A'.repeat(10000) + '=bar\r\nAA\r\n' +
+ '0\r\n\r\n'
+ );
+ });
+}
diff --git a/tools/update-llhttp.sh b/tools/update-llhttp.sh
index 12e2f465d7..a95eef1237 100755
--- a/tools/update-llhttp.sh
+++ b/tools/update-llhttp.sh
@@ -59,5 +59,5 @@ echo ""
echo "Please git add llhttp, commit the new version:"
echo ""
echo "$ git add -A deps/llhttp"
-echo "$ git commit -m \"deps: update nghttp2 to $LLHTTP_VERSION\""
+echo "$ git commit -m \"deps: update llhttp to $LLHTTP_VERSION\""
echo ""
--
2.41.0
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