File php7-CVE-2023-0568.patch of Package php7

From ec10b28d64decbc54aa1e585dce580f0bd7a5953 Mon Sep 17 00:00:00 2001
From: Niels Dossche <7771979+nielsdos@users.noreply.github.com>
Date: Fri, 27 Jan 2023 19:28:27 +0100
Subject: [PATCH] Fix array overrun when appending slash to paths

Fix it by extending the array sizes by one character. As the input is
limited to the maximum path length, there will always be place to append
the slash. As the php_check_specific_open_basedir() simply uses the
strings to compare against each other, no new failures related to too
long paths are introduced.
We'll let the DOM and XML case handle a potentially too long path in the
library code.
---
 ext/dom/document.c            | 2 +-
 ext/xmlreader/php_xmlreader.c | 2 +-
 main/fopen_wrappers.c         | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/ext/dom/document.c b/ext/dom/document.c
index dbbabb8bffde..fa6a6377ad5c 100644
--- a/ext/dom/document.c
+++ b/ext/dom/document.c
@@ -1174,7 +1174,7 @@ static xmlDocPtr dom_document_parser(zval *id, int mode, char *source, size_t so
 	int validate, recover, resolve_externals, keep_blanks, substitute_ent;
 	int resolved_path_len;
 	int old_error_reporting = 0;
-	char *directory=NULL, resolved_path[MAXPATHLEN];
+	char *directory=NULL, resolved_path[MAXPATHLEN + 1];
 
 	if (id != NULL) {
 		intern = Z_DOMOBJ_P(id);
diff --git a/ext/xmlreader/php_xmlreader.c b/ext/xmlreader/php_xmlreader.c
index ecc52aa1d6f4..d8f8105010c7 100644
--- a/ext/xmlreader/php_xmlreader.c
+++ b/ext/xmlreader/php_xmlreader.c
@@ -1024,7 +1024,7 @@ PHP_METHOD(XMLReader, XML)
 	xmlreader_object *intern = NULL;
 	char *source, *uri = NULL, *encoding = NULL;
 	int resolved_path_len, ret = 0;
-	char *directory=NULL, resolved_path[MAXPATHLEN];
+	char *directory=NULL, resolved_path[MAXPATHLEN + 1];
 	xmlParserInputBufferPtr inputbfr;
 	xmlTextReaderPtr reader;
 
diff --git a/main/fopen_wrappers.c b/main/fopen_wrappers.c
index 39a9c82d5984..5e4a619c8fe7 100644
--- a/main/fopen_wrappers.c
+++ b/main/fopen_wrappers.c
@@ -129,10 +129,10 @@ PHPAPI ZEND_INI_MH(OnUpdateBaseDir)
 */
 PHPAPI int php_check_specific_open_basedir(const char *basedir, const char *path)
 {
-	char resolved_name[MAXPATHLEN];
-	char resolved_basedir[MAXPATHLEN];
+	char resolved_name[MAXPATHLEN + 1];
+	char resolved_basedir[MAXPATHLEN + 1];
 	char local_open_basedir[MAXPATHLEN];
-	char path_tmp[MAXPATHLEN];
+	char path_tmp[MAXPATHLEN + 1];
 	char *path_file;
 	size_t resolved_basedir_len;
 	size_t resolved_name_len;