diff options
Diffstat (limited to 'php-bug78863.patch')
| -rw-r--r-- | php-bug78863.patch | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/php-bug78863.patch b/php-bug78863.patch new file mode 100644 index 0000000..b218dfc --- /dev/null +++ b/php-bug78863.patch @@ -0,0 +1,85 @@ +From f76bef09fce6c438ecee2d2e6f9804d54709174b Mon Sep 17 00:00:00 2001 +From: "Christoph M. Becker" <cmbecker69@gmx.de> +Date: Tue, 17 Dec 2019 11:03:29 +0100 +Subject: [PATCH] Fix #78863: DirectoryIterator class silently truncates after + a null byte + +Since the constructor of DirectoryIterator and friends is supposed to +accepts paths (i.e. strings without NUL bytes), we must not accept +arbitrary strings. + +(cherry picked from commit a5a15965da23c8e97657278fc8dfbf1dfb20c016) +--- + NEWS | 2 ++ + ext/spl/spl_directory.c | 4 ++-- + ext/spl/tests/bug78863.phpt | 31 +++++++++++++++++++++++++++++++ + 3 files changed, 35 insertions(+), 2 deletions(-) + create mode 100644 ext/spl/tests/bug78863.phpt + +diff --git a/NEWS b/NEWS +index 02cd502c8c..39a2f43818 100644 +--- a/NEWS ++++ b/NEWS +@@ -10,6 +10,8 @@ Backported from 7.2.26 + - Core: + . Fixed bug #78862 (link() silently truncates after a null byte on Windows). + (CVE-2019-11044). (cmb) ++ . Fixed bug #78863 (DirectoryIterator class silently truncates after a null ++ byte). (CVE-2019-11045). (cmb) + + Backported from 7.1.33 + +diff --git a/ext/spl/spl_directory.c b/ext/spl/spl_directory.c +index 300cf01909..abfce1525a 100644 +--- a/ext/spl/spl_directory.c ++++ b/ext/spl/spl_directory.c +@@ -684,10 +684,10 @@ void spl_filesystem_object_construct(INTERNAL_FUNCTION_PARAMETERS, zend_long cto + + if (SPL_HAS_FLAG(ctor_flags, DIT_CTOR_FLAGS)) { + flags = SPL_FILE_DIR_KEY_AS_PATHNAME|SPL_FILE_DIR_CURRENT_AS_FILEINFO; +- parsed = zend_parse_parameters(ZEND_NUM_ARGS(), "s|l", &path, &len, &flags); ++ parsed = zend_parse_parameters(ZEND_NUM_ARGS(), "p|l", &path, &len, &flags); + } else { + flags = SPL_FILE_DIR_KEY_AS_PATHNAME|SPL_FILE_DIR_CURRENT_AS_SELF; +- parsed = zend_parse_parameters(ZEND_NUM_ARGS(), "s", &path, &len); ++ parsed = zend_parse_parameters(ZEND_NUM_ARGS(), "p", &path, &len); + } + if (SPL_HAS_FLAG(ctor_flags, SPL_FILE_DIR_SKIPDOTS)) { + flags |= SPL_FILE_DIR_SKIPDOTS; +diff --git a/ext/spl/tests/bug78863.phpt b/ext/spl/tests/bug78863.phpt +new file mode 100644 +index 0000000000..dc88d98dee +--- /dev/null ++++ b/ext/spl/tests/bug78863.phpt +@@ -0,0 +1,31 @@ ++--TEST-- ++Bug #78863 (DirectoryIterator class silently truncates after a null byte) ++--FILE-- ++<?php ++$dir = __DIR__ . '/bug78863'; ++mkdir($dir); ++touch("$dir/bad"); ++mkdir("$dir/sub"); ++touch("$dir/sub/good"); ++ ++$it = new DirectoryIterator(__DIR__ . "/bug78863\0/sub"); ++foreach ($it as $fileinfo) { ++ if (!$fileinfo->isDot()) { ++ var_dump($fileinfo->getFilename()); ++ } ++} ++?> ++--EXPECTF-- ++Fatal error: Uncaught UnexpectedValueException: DirectoryIterator::__construct() expects parameter 1 to be a valid path, string given in %s:%d ++Stack trace: ++#0 %s(%d): DirectoryIterator->__construct('%s') ++#1 {main} ++ thrown in %s on line %d ++--CLEAN-- ++<?php ++$dir = __DIR__ . '/bug78863'; ++unlink("$dir/sub/good"); ++rmdir("$dir/sub"); ++unlink("$dir/bad"); ++rmdir($dir); ++?> |