summaryrefslogtreecommitdiffstats
path: root/php-cve-2024-8925.patch
diff options
context:
space:
mode:
Diffstat (limited to 'php-cve-2024-8925.patch')
-rw-r--r--php-cve-2024-8925.patch227
1 files changed, 227 insertions, 0 deletions
diff --git a/php-cve-2024-8925.patch b/php-cve-2024-8925.patch
new file mode 100644
index 0000000..f219a24
--- /dev/null
+++ b/php-cve-2024-8925.patch
@@ -0,0 +1,227 @@
+From a24ac172f52e75101913f3946cfa5515f723c99f Mon Sep 17 00:00:00 2001
+From: Arnaud Le Blanc <arnaud.lb@gmail.com>
+Date: Mon, 9 Sep 2024 15:22:07 +0200
+Subject: [PATCH 04/11] Fix GHSA-9pqp-7h25-4f32
+
+multipart/form-data boundaries larger than the read buffer result in erroneous
+parsing, which violates data integrity.
+
+Limit boundary size, as allowed by RFC 1521:
+
+ Encapsulation boundaries [...] must be no longer than 70 characters, not
+ counting the two leading hyphens.
+
+We correctly parse payloads with boundaries of length up to
+FILLUNIT-strlen("\r\n--") bytes, so allow this for BC.
+
+(cherry picked from commit 19b49258d0c5a61398d395d8afde1123e8d161e0)
+(cherry picked from commit 2b0daf421c162376892832588eccdfa9a286ed09)
+---
+ main/rfc1867.c | 7 ++
+ tests/basic/GHSA-9pqp-7h25-4f32.inc | 3 +
+ tests/basic/GHSA-9pqp-7h25-4f32.phpt | 100 +++++++++++++++++++++++++++
+ 3 files changed, 110 insertions(+)
+ create mode 100644 tests/basic/GHSA-9pqp-7h25-4f32.inc
+ create mode 100644 tests/basic/GHSA-9pqp-7h25-4f32.phpt
+
+diff --git a/main/rfc1867.c b/main/rfc1867.c
+index 1b212c93325..43ccce120c3 100644
+--- a/main/rfc1867.c
++++ b/main/rfc1867.c
+@@ -759,6 +759,13 @@ SAPI_API SAPI_POST_HANDLER_FUNC(rfc1867_post_handler) /* {{{ */
+ boundary_len = boundary_end-boundary;
+ }
+
++ /* Boundaries larger than FILLUNIT-strlen("\r\n--") characters lead to
++ * erroneous parsing */
++ if (boundary_len > FILLUNIT-strlen("\r\n--")) {
++ sapi_module.sapi_error(E_WARNING, "Boundary too large in multipart/form-data POST data");
++ return;
++ }
++
+ /* Initialize the buffer */
+ if (!(mbuff = multipart_buffer_new(boundary, boundary_len))) {
+ sapi_module.sapi_error(E_WARNING, "Unable to initialize the input buffer");
+diff --git a/tests/basic/GHSA-9pqp-7h25-4f32.inc b/tests/basic/GHSA-9pqp-7h25-4f32.inc
+new file mode 100644
+index 00000000000..adf72a361a2
+--- /dev/null
++++ b/tests/basic/GHSA-9pqp-7h25-4f32.inc
+@@ -0,0 +1,3 @@
++<?php
++print "Hello world\n";
++var_dump($_POST);
+diff --git a/tests/basic/GHSA-9pqp-7h25-4f32.phpt b/tests/basic/GHSA-9pqp-7h25-4f32.phpt
+new file mode 100644
+index 00000000000..af819163705
+--- /dev/null
++++ b/tests/basic/GHSA-9pqp-7h25-4f32.phpt
+@@ -0,0 +1,100 @@
++--TEST--
++GHSA-9pqp-7h25-4f32
++--SKIPIF--
++<?php
++if (!getenv('TEST_PHP_CGI_EXECUTABLE')) {
++ die("skip php-cgi not available");
++}
++?>
++--FILE--
++<?php
++
++const FILLUNIT = 5 * 1024;
++
++function test($boundaryLen) {
++ printf("Boundary len: %d\n", $boundaryLen);
++
++ $cmd = [
++ getenv('TEST_PHP_CGI_EXECUTABLE'),
++ '-C',
++ '-n',
++ __DIR__ . '/GHSA-9pqp-7h25-4f32.inc',
++ ];
++
++ $boundary = str_repeat('A', $boundaryLen);
++ $body = ""
++ . "--$boundary\r\n"
++ . "Content-Disposition: form-data; name=\"koko\"\r\n"
++ . "\r\n"
++ . "BBB\r\n--" . substr($boundary, 0, -1) . "CCC\r\n"
++ . "--$boundary--\r\n"
++ ;
++
++ $env = array_merge($_ENV, [
++ 'REDIRECT_STATUS' => '1',
++ 'CONTENT_TYPE' => "multipart/form-data; boundary=$boundary",
++ 'CONTENT_LENGTH' => strlen($body),
++ 'REQUEST_METHOD' => 'POST',
++ 'SCRIPT_FILENAME' => __DIR__ . '/GHSA-9pqp-7h25-4f32.inc',
++ ]);
++
++ $spec = [
++ 0 => ['pipe', 'r'],
++ 1 => STDOUT,
++ 2 => STDOUT,
++ ];
++
++ $pipes = [];
++
++ print "Starting...\n";
++
++ $handle = proc_open($cmd, $spec, $pipes, getcwd(), $env);
++
++ fwrite($pipes[0], $body);
++
++ $status = proc_close($handle);
++
++ print "\n";
++}
++
++for ($offset = -1; $offset <= 1; $offset++) {
++ test(FILLUNIT - strlen("\r\n--") + $offset);
++}
++
++?>
++--EXPECTF--
++Boundary len: 5115
++Starting...
++X-Powered-By: %s
++Content-type: text/html; charset=UTF-8
++
++Hello world
++array(1) {
++ ["koko"]=>
++ string(5124) "BBB
++--AAA%sCCC"
++}
++
++Boundary len: 5116
++Starting...
++X-Powered-By: %s
++Content-type: text/html; charset=UTF-8
++
++Hello world
++array(1) {
++ ["koko"]=>
++ string(5125) "BBB
++--AAA%sCCC"
++}
++
++Boundary len: 5117
++Starting...
++X-Powered-By: %s
++Content-type: text/html; charset=UTF-8
++
++<br />
++<b>Warning</b>: Boundary too large in multipart/form-data POST data in <b>Unknown</b> on line <b>0</b><br />
++Hello world
++array(0) {
++}
++
+--
+2.46.1
+
+From 2fd1b83817d20523e72bef3ad524cd5797f51acf Mon Sep 17 00:00:00 2001
+From: Jakub Zelenka <bukka@php.net>
+Date: Mon, 23 Sep 2024 18:54:31 +0100
+Subject: [PATCH 08/11] Skip GHSA-9pqp-7h25-4f32 test on Windows
+
+(cherry picked from commit c70e25630832fa10d421328eed2b8e1a36af7a64)
+(cherry picked from commit c75683864f6e4188439e8ca2adbb05824918be12)
+---
+ tests/basic/GHSA-9pqp-7h25-4f32.phpt | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/tests/basic/GHSA-9pqp-7h25-4f32.phpt b/tests/basic/GHSA-9pqp-7h25-4f32.phpt
+index af819163705..29bcb6557d5 100644
+--- a/tests/basic/GHSA-9pqp-7h25-4f32.phpt
++++ b/tests/basic/GHSA-9pqp-7h25-4f32.phpt
+@@ -5,6 +5,9 @@ GHSA-9pqp-7h25-4f32
+ if (!getenv('TEST_PHP_CGI_EXECUTABLE')) {
+ die("skip php-cgi not available");
+ }
++if (substr(PHP_OS, 0, 3) == 'WIN') {
++ die("skip not for Windows in CI - probably resource issue");
++}
+ ?>
+ --FILE--
+ <?php
+--
+2.46.1
+
+From 29065f33f37f99ba33254cb23c941647bcd7372c Mon Sep 17 00:00:00 2001
+From: Remi Collet <remi@remirepo.net>
+Date: Thu, 26 Sep 2024 15:49:03 +0200
+Subject: [PATCH 11/11] adapt GHSA-9pqp-7h25-4f32 test for 7.x
+
+---
+ tests/basic/GHSA-9pqp-7h25-4f32.phpt | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/tests/basic/GHSA-9pqp-7h25-4f32.phpt b/tests/basic/GHSA-9pqp-7h25-4f32.phpt
+index 29bcb6557d5..a1ead918ff3 100644
+--- a/tests/basic/GHSA-9pqp-7h25-4f32.phpt
++++ b/tests/basic/GHSA-9pqp-7h25-4f32.phpt
+@@ -21,6 +21,7 @@ function test($boundaryLen) {
+ getenv('TEST_PHP_CGI_EXECUTABLE'),
+ '-C',
+ '-n',
++ '-dlog_errors=1',
+ __DIR__ . '/GHSA-9pqp-7h25-4f32.inc',
+ ];
+
+@@ -92,11 +93,10 @@ array(1) {
+
+ Boundary len: 5117
+ Starting...
++PHP Warning: Boundary too large in multipart/form-data POST data in Unknown on line 0
+ X-Powered-By: %s
+ Content-type: text/html; charset=UTF-8
+
+-<br />
+-<b>Warning</b>: Boundary too large in multipart/form-data POST data in <b>Unknown</b> on line <b>0</b><br />
+ Hello world
+ array(0) {
+ }
+--
+2.46.1
+