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CVE-2009-4142

Status Candidate

Overview

The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character.

Related Files

HP Security Bulletin HPSBUX02543 SSRT100152
Posted Jun 19, 2010
Authored by Hewlett Packard | Site hp.com

HP Security Bulletin - Potential security vulnerabilities have been identified with HP-UX running Apache with PHP. These vulnerabilities could be exploited remotely to create a Denial of Service (DoS) gain unauthorized access, and perform cross site scripting (XSS).

tags | advisory, denial of service, php, vulnerability, xss
systems | hpux
advisories | CVE-2009-2687, CVE-2009-3291, CVE-2009-3292, CVE-2009-3293, CVE-2009-3557, CVE-2009-4017, CVE-2009-4018, CVE-2009-4142, CVE-2009-4143
MD5 | fb8a1ed6738fc28c3bf409677d0e6489
Debian Linux Security Advisory 2001-1
Posted Feb 20, 2010
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2001-1 - Several remote vulnerabilities have been discovered in PHP 5, an hypertext preprocessor.

tags | advisory, remote, php, vulnerability
systems | linux, debian
advisories | CVE-2009-4142, CVE-2009-4143
MD5 | c803642cec299d8db68d6e6df19f9dd2
Mandriva Linux Security Advisory 2010-009
Posted Jan 16, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-009 - The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character. The updated packages have been patched to correct this issue.

tags | advisory, remote, php, xss
systems | linux, mandriva
advisories | CVE-2009-4142
MD5 | 3bc2c39f69446ef0aee711c725b25958
Mandriva Linux Security Advisory 2010-008
Posted Jan 16, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-008 - The zend_restore_ini_entry_cb function in zend_ini.c in PHP 5.3.0, 5.2.10, and earlier versions allows context-specific attackers to obtain sensitive information (memory contents) and cause a PHP crash by using the ini_set function to declare a variable, then using the ini_restore function to restore the variable. The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character. Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers. The updated packages have been patched to correct these issues.

tags | advisory, remote, php, xss
systems | linux, mandriva
advisories | CVE-2009-2626, CVE-2009-4142
MD5 | 255d28778c94f59a3f2ad6327849b2e3
Mandriva Linux Security Advisory 2010-007
Posted Jan 16, 2010
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2010-007 - The (1) htmlentities and (2) htmlspecialchars functions in PHP before 5.2.5 accept partial multibyte sequences, which has unknown impact and attack vectors, a different issue than CVE-2006-5465. The zend_restore_ini_entry_cb function in zend_ini.c in PHP 5.3.0, 5.2.10, and earlier versions allows context-specific attackers to obtain sensitive information (memory contents) and cause a PHP crash by using the ini_set function to declare a variable, then using the ini_restore function to restore the variable. The htmlspecialchars function in PHP before 5.2.12 does not properly handle (1) overlong UTF-8 sequences, (2) invalid Shift_JIS sequences, and (3) invalid EUC-JP sequences, which allows remote attackers to conduct cross-site scripting (XSS) attacks by placing a crafted byte sequence before a special character. The updated packages have been patched to correct these issues.

tags | advisory, remote, php, xss
systems | linux, mandriva
advisories | CVE-2007-5898, CVE-2009-2626, CVE-2009-4142
MD5 | 13194dccfcf5d6fe0f4480b1cb1f6b2c
Ubuntu Security Notice 882-1
Posted Jan 14, 2010
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 882-1 - Maksymilian Arciemowicz discovered that PHP did not properly handle the ini_restore function. An attacker could exploit this issue to obtain random memory contents or to cause the PHP server to crash, resulting in a denial of service. It was discovered that the htmlspecialchars function did not properly handle certain character sequences, which could result in browsers becoming vulnerable to cross-site scripting attacks when processing the output. With cross-site scripting vulnerabilities, if a user were tricked into viewing server output during a crafted server request, a remote attacker could exploit this to modify the contents, or steal confidential data (such as passwords), within the same domain. Stefan Esser discovered that PHP did not properly handle session data. An attacker could exploit this issue to bypass safe_mode or open_basedir restrictions.

tags | advisory, remote, denial of service, php, vulnerability, xss
systems | linux, ubuntu
advisories | CVE-2009-2626, CVE-2009-4142, CVE-2009-4143
MD5 | 58014cec2904df5137bfc8f8a0a82992
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