The tempnam function in ext/standard/file.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass safe_mode restrictions, and create files in group-writable or world-writable directories, via the dir and prefix arguments.

Some vulnerabilities were discovered and corrected in php-5.2.11 :

The tempnam function in ext/standard/file.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass safe_mode restrictions, and create files in group-writable or world-writable directories, via the dir and prefix arguments (CVE-2009-3557).

The posix_mkfifo function in ext/posix/posix.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file (CVE-2009-3558).

PHP 5.2.11, and 5.3.x before 5.3.1, does not restrict the number of temporary files created when handling a multipart/form-data POST request, which allows remote attackers to cause a denial of service (resource exhaustion), and makes it easier for remote attackers to exploit local file inclusion vulnerabilities, via multiple requests, related to lack of support for the max_file_uploads directive (CVE-2009-4017).

The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable (CVE-2009-4018).

Intermittent segfaults occured on x86_64 with the latest phpmyadmin and with apache (#53735).

Additionally, some packages which require so, have been rebuilt and are being provided as updates.

Some vulnerabilities were discovered and corrected in php-5.3.1 :

  - Added max_file_uploads INI directive, which can be set     to limit the number of file uploads per-request to 20 by     default, to prevent possible DOS via temporary file     exhaustion. (Ilia)

  - Added missing sanity checks around exif processing.
    (CVE-2009-3292, Ilia)

  - Fixed a safe_mode bypass in tempnam() identified by     Grzegorz Stachowiak. (CVE-2009-3557, Rasmus)

  - Fixed a open_basedir bypass in posix_mkfifo() identified     by Grzegorz Stachowiak. (CVE-2009-3558, Rasmus)

  - Fixed bug #50063 (safe_mode_include_dir fails).
    (CVE-2009-3559, Johannes, christian at elmerot dot se)

Additionally, some packages which require so, have been rebuilt and are being provided as updates.

The remote host is running a version of Mac OS X 10.6 that is older than version 10.6.3.  Mac OS X 10.6.3 contains security fixes for the following products :

  - AFP Server

  - Apache

  - CoreAudio

  - CoreMedia

  - CoreTypes

  - CUPS

  - DesktopServices

  - Disk Images

  - Directory Services

  - Dovecot

  - Event Monitor

  - FreeRADIUS

  - FTP Server

  - iChat Server

  - ImageIO

  - Image RAW

  - Libsystem

  - Mail

  - MySQL

  - OS Services

  - Password Server

  - PHP

  - Podcast Producer

  - Preferences

  - PS Normalizer

  - QuickTime

  - Ruby

  - Server Admin

  - SMB

  - Tomcat

  - Wiki Server

  - X11

The remote host is running a version of Mac OS X 10.5 that does not have Security Update 2010-002 applied.

This security update contains fixes for the following products :

  - AppKit
  - Application Firewall
  - AFP Server
  - Apache
  - ClamAV
  - CoreTypes
  - CUPS
  - curl
  - Cyrus IMAP
  - Cyrus SASL
  - Disk Images
  - Directory Services
  - Event Monitor
  - FreeRADIUS
  - FTP Server
  - iChat Server
  - Image RAW
  - Libsystem
  - Mail
  - Mailman
  - OS Services
  - Password Server
  - perl
  - PHP
  - PS Normalizer
  - Ruby
  - Server Admin
  - SMB
  - Tomcat
  - unzip
  - vim
  - Wiki Server
  - X11
  - xar

The remote host is running a version of Mac OS X 10.6.x that is prior to 10.6.3.

Mac OS X 10.6.3 contains security fixes for the following products :

  - AFP Server
  - Apache
  - CoreAudio
  - CoreMedia
  - CoreTypes
  - CUPS
  - DesktopServices
  - Disk Images
  - Directory Services
  - Dovecot
  - Event Monitor
  - FreeRADIUS
  - FTP Server
  - iChat Server
  - ImageIO
  - Image RAW
  - Libsystem
  - Mail
  - MySQL
  - OS Services
  - Password Server
  - PHP
  - Podcast Producer
  - Preferences
  - PS Normalizer
  - QuickTime
  - Ruby
  - Server Admin
  - SMB
  - Tomcat
  - Wiki Server
  - X11

The remote host is affected by the vulnerability described in GLSA-201001-03 (PHP: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PHP. Please review the     CVE identifiers referenced below and the associated PHP release notes     for details.
  Impact :

    A context-dependent attacker could execute arbitrary code via a     specially crafted string containing an HTML entity when the mbstring     extension is enabled. Furthermore a remote attacker could execute     arbitrary code via a specially crafted GD graphics file.
    A remote attacker could also cause a Denial of Service via a malformed     string passed to the json_decode() function, via a specially crafted     ZIP file passed to the php_zip_make_relative_path() function, via a     malformed JPEG image passed to the exif_read_data() function, or via     temporary file exhaustion. It is also possible for an attacker to spoof     certificates, bypass various safe_mode and open_basedir restrictions     when certain criteria are met, perform Cross-site scripting attacks,     more easily perform SQL injection attacks, manipulate settings of other     virtual hosts on the same server via a malicious .htaccess entry when     running on Apache, disclose memory portions, and write arbitrary files     via a specially crafted ZIP archive. Some vulnerabilities with unknown     impact and attack vectors have been reported as well.
  Workaround :

    There is no known workaround at this time.

New php packages are available for Slackware 11.0, 12.0, 12.1, 12.2, 13.0, and -current to fix security issues.

According to its banner, the version of PHP 5.2.x installed on the remote host is earlier than 5.2.12.  Such versions are potentially affected by multiple vulnerabilities : 

  - A safe_mode bypass in tempnam(). (CVE-2009-3557)

  - An open_basedir bypass in posix_mkfifo(). (CVE-2009-3558)

  - A possible denial-of-service via temporary file exhaustion caused by a failure to limit the number of file uploads per request. (CVE-2009-4017)

  - An arbitrary code execution vulnerability in the 'session.save_path()' function and the '$_SESSION' data structure. (CVE-2009-4143)

  - A cross-site scripting vulnerability becuase the 'htmlspecialcharacters()' function fails to properly handle some malformed multibyte character sequences.

According to its banner, the version of PHP installed on the remote host is older than 5.2.12.  Such versions may be affected by several security issues :

  - It is possible to bypass the 'safe_mode' configuration     setting using 'tempnam()'. (CVE-2009-3557)

  - It is possible to bypass the 'open_basedir'     configuration setting using 'posix_mkfifo()'.     (CVE-2009-3558)

  - Provided file uploading is enabled (it is by default),     an attacker can upload files using a POST request with     'multipart/form-data' content even if the target script     doesn't actually support file uploads per se.  By     supplying a large number (15,000+) of files, an attacker     could cause the web server to stop responding while it     processes the file list. (CVE-2009-4017)

  - Missing protection for '$_SESSION' from interrupt     corruption and improved 'session.save_path' check.
    (CVE-2009-4143)

  - Insufficient input string validation in the     'htmlspecialchars()' function. (CVE-2009-4142)

PHP developers reports :

This release focuses on improving the stability of the PHP 5.2.x branch with over 60 bug fixes, some of which are security related. All users of PHP 5.2 are encouraged to upgrade to this release.

Security Enhancements and Fixes in PHP 5.2.12 :

- Fixed a safe_mode bypass in tempnam() identified by Grzegorz Stachowiak. (CVE-2009-3557, Rasmus)

- Fixed a open_basedir bypass in posix_mkfifo() identified by Grzegorz Stachowiak. (CVE-2009-3558, Rasmus)

- Added 'max_file_uploads' INI directive, which can be set to limit the number of file uploads per-request to 20 by default, to prevent possible DOS via temporary file exhaustion, identified by Bogdan Calin. (CVE-2009-4017, Ilia)

- Added protection for $_SESSION from interrupt corruption and improved 'session.save_path' check, identified by Stefan Esser.
(CVE-2009-4143, Stas)

- Fixed bug #49785 (insufficient input string validation of htmlspecialchars()). (CVE-2009-4142, Moriyoshi, hello at iwamot dot com)

Multiple vulnerabilities was discovered and corrected in php :

The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068).

The JSON_parser function (ext/json/JSON_parser.c) in PHP 5.2.x before 5.2.9 allows remote attackers to cause a denial of service (segmentation fault) via a malformed string to the json_decode API function (CVE-2009-1271).

  - Fixed upstream bug #48378 (exif_read_data() segfaults on     certain corrupted .jpeg files) (CVE-2009-2687).

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291).

Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292)

Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293)

The _gdGetColors function in gd_gd.c in PHP 5.2.11 and 5.3.0, and the GD Graphics Library 2.x, does not properly verify a certain colorsTotal structure member, which might allow remote attackers to conduct buffer overflow or buffer over-read attacks via a crafted GD file, a different vulnerability than CVE-2009-3293. NOTE: some of these details are obtained from third-party information (CVE-2009-3546).

The tempnam function in ext/standard/file.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass safe_mode restrictions, and create files in group-writable or world-writable directories, via the dir and prefix arguments (CVE-2009-3557).

The posix_mkfifo function in ext/posix/posix.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file (CVE-2009-3558).

PHP 5.2.11, and 5.3.x before 5.3.1, does not restrict the number of temporary files created when handling a multipart/form-data POST request, which allows remote attackers to cause a denial of service (resource exhaustion), and makes it easier for remote attackers to exploit local file inclusion vulnerabilities, via multiple requests, related to lack of support for the max_file_uploads directive (CVE-2009-4017).

The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable (CVE-2009-4018).

The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068).

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291).

Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292)

Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293). However in Mandriva we don't use the bundled libgd source in php per default, there is a unsupported package in contrib named php-gd-bundled that eventually will get updated to pickup these fixes.

The php-suhosin package has been upgraded to 0.9.22 which has better support for apache vhosts.

Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers

This update provides a solution to these vulnerabilities.

Maksymilian Arciemowicz discovered that PHP did not properly validate arguments to the dba_replace function. If a script passed untrusted input to the dba_replace function, an attacker could truncate the database. This issue only applied to Ubuntu 6.06 LTS, 8.04 LTS, and 8.10. (CVE-2008-7068)

It was discovered that PHP's php_openssl_apply_verification_policy function did not correctly handle SSL certificates with zero bytes in the Common Name. A remote attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications. (CVE-2009-3291)

It was discovered that PHP did not properly handle certain malformed images when being parsed by the Exif module. A remote attacker could exploit this flaw and cause the PHP server to crash, resulting in a denial of service. (CVE-2009-3292)

Grzegorz Stachowiak discovered that PHP did not properly enforce restrictions in the tempnam function. An attacker could exploit this issue to bypass safe_mode restrictions. (CVE-2009-3557)

Grzegorz Stachowiak discovered that PHP did not properly enforce restrictions in the posix_mkfifo function. An attacker could exploit this issue to bypass open_basedir restrictions. (CVE-2009-3558)

Bogdan Calin discovered that PHP did not limit the number of temporary files created when handling multipart/form-data POST requests. A remote attacker could exploit this flaw and cause the PHP server to consume all available resources, resulting in a denial of service.
(CVE-2009-4017)

ATTENTION: This update changes previous PHP behaviour by limiting the number of files in a POST request to 50. This may be increased by adding a 'max_file_uploads' directive to the php.ini configuration file.

It was discovered that PHP did not properly enforce restrictions in the proc_open function. An attacker could exploit this issue to bypass safe_mode_protected_env_vars restrictions and possibly execute arbitrary code with application privileges. (CVE-2009-4018).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to its banner, the version of PHP 5.3.x installed on the remote host is earlier than 5.3.1.  Such versions are potentially affected by multiple issues : 

  - Sanity checks are missing in exif processing.

  - It is possible to bypass the 'safe_mode' configuration setting using 'tempnam()'.

  - It is possible to bypass the 'open_basedir' configuration setting using 'posix_mkfifo()'.

  - The 'safe_mode_include_dir' configuration setting may be ignored.

  - Calling 'popen()' with an invalid mode can cause a crash.

  - A safe_mode restriction-bypass vulnerability because environment variables specified for 'proc_open' are passed without checking them.

According to its banner, the version of PHP 5.3 installed on the remote host is older than 5.3.1.  Such versions may be affected by several security issues :

  - Sanity checks are missing in exif processing.

  - It is possible to bypass the 'safe_mode' configuration     setting using 'tempnam()'.

  - It is possible to bypass the 'open_basedir'     configuration setting using 'posix_mkfifo()'.

  - The 'safe_mode_include_dir' configuration setting may     be ignored. (Bug #50063)

  - Calling 'popen()' with an invalid mode can cause a     crash under Windows. (Bug #44683)

  - Provided file uploading is enabled (it is by default),     an attacker can upload files using a POST request with     'multipart/form-data' content even if the target script     doesn't actually support file uploads per se. By     supplying a large number (15,000+) of files, an attacker     could cause the web server to stop responding while it     processes the file list.

  - 'proc_open()' can bypass 'safe_mode_protected_env_vars'.
    (Bug #49026)

  - An unspecified vulnerability affects the LCG entropy.

Multiple vulnerabilities has been found and corrected in php :

The _gdGetColors function in gd_gd.c in PHP 5.2.11 and 5.3.0, and the GD Graphics Library 2.x, does not properly verify a certain colorsTotal structure member, which might allow remote attackers to conduct buffer overflow or buffer over-read attacks via a crafted GD file, a different vulnerability than CVE-2009-3293. NOTE: some of these details are obtained from third-party information (CVE-2009-3546).

The tempnam function in ext/standard/file.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass safe_mode restrictions, and create files in group-writable or world-writable directories, via the dir and prefix arguments (CVE-2009-3557).

The posix_mkfifo function in ext/posix/posix.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file (CVE-2009-3558).

Additionally on CS4 a regression was found and fixed when using the gd-bundled.so variant from the php-gd package.

This update fixes these vulnerabilities.

ID	Name	Product	Family	Severity
48159	Mandriva Linux Security Advisory : php (MDVSA-2009:303)	Nessus	Mandriva Local Security Checks	high
48158	Mandriva Linux Security Advisory : php (MDVSA-2009:302)	Nessus	Mandriva Local Security Checks	high
5489	Mac OS X < 10.6.3 Multiple Vulnerabilities	Nessus Network Monitor	Generic	critical
45373	Mac OS X Multiple Vulnerabilities (Security Update 2010-002)	Nessus	MacOS X Local Security Checks	critical
45372	Mac OS X 10.6.x < 10.6.3 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	critical
44892	GLSA-201001-03 : PHP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
44121	Slackware 11.0 / 12.0 / 12.1 / 12.2 / 13.0 / current : php (SSA:2010-024-02)	Nessus	Slackware Local Security Checks	critical
801091	PHP 5.2.x < 5.2.12 Multiple Vulnerabilities	Log Correlation Engine	Web Servers	medium
5281	PHP 5.2.x < 5.2.12 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	medium
43351	PHP < 5.2.12 Multiple Vulnerabilities	Nessus	CGI abuses	medium
43342	FreeBSD : php -- multiple vulnerabilities (39a25a63-eb5c-11de-b650-00215c6a37bb)	Nessus	FreeBSD Local Security Checks	critical
43043	Mandriva Linux Security Advisory : php (MDVSA-2009:324)	Nessus	Mandriva Local Security Checks	high
42930	Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : php5 vulnerabilities (USN-862-1)	Nessus	Ubuntu Local Security Checks	high
5242	PHP 5.3.x < 5.3.1 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	high
42862	PHP 5.3 < 5.3.1 Multiple Vulnerabilities	Nessus	CGI abuses	medium
42199	Mandriva Linux Security Advisory : php (MDVSA-2009:285)	Nessus	Mandriva Local Security Checks	high

Detections

Analytics

CVE-2009-3557

high

Tenable Plugins

high

high

critical

critical

critical

critical

critical

medium

medium

medium

critical

high

high

high

medium

high