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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
SHA-256 | c1954c41fb731ee70c50740ef529fcd3936287138bfd2ad9872394c9aa5a8553
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
SHA-256 | 47ce4bcadf3285a7bf3d80e1343752dc3b64068d96f73b4b6352d6ac447f427d
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
SHA-256 | d1aeec67eec6887d76ca8f55deb110bf96caf2a2d7dc196f59f2420f47db0f9a
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
SHA-256 | c5438a6562ebbc112246d9acf0442254a06cf7b21ae5ccf722fd2dc399400237
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
SHA-256 | a5e30a5cb2e7c44e5f7ca9485bed9a3fcf2dedcd62d54e21bee5b2d8140cdbab
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
SHA-256 | cd84529d17d2626ad3cfc09945cde3a151f1ded241b92b2d05de3bbf06264243
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