Input validation error in PHP - CVE-2008-3659

Detailed vulnerability description

The vulnerability allows context-dependent attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (crash) and possibly execute arbitrary code via the delimiter argument to the explode function. NOTE: the scope of this issue is limited since most applications would not use an attacker-controlled delimiter, but local attacks against safe_mode are feasible.

How to mitigate CVE-2008-3659

Sources

• http://bugs.gentoo.org/show_bug.cgi?id=234102
• http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
• http://lists.opensuse.org/opensuse-security-announce/2008-09/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00006.html
• http://marc.info/?l=bugtraq&m=124654546101607&w=2
• http://marc.info/?l=bugtraq&m=125631037611762&w=2
• http://news.php.net/php.cvs/52002
• http://osvdb.org/47483
• http://secunia.com/advisories/31982
• http://secunia.com/advisories/32148
• http://secunia.com/advisories/32316
• http://secunia.com/advisories/32746
• http://secunia.com/advisories/35074
• http://secunia.com/advisories/35650
• http://security.gentoo.org/glsa/glsa-200811-05.xml
• http://support.apple.com/kb/HT3549
• http://wiki.rpath.com/Advisories:rPSA-2009-0035
• http://www.debian.org/security/2008/dsa-1647
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:021
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:022
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:023
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:024
• http://www.openwall.com/lists/oss-security/2008/08/08/2
• http://www.openwall.com/lists/oss-security/2008/08/08/3
• http://www.openwall.com/lists/oss-security/2008/08/08/4
• http://www.openwall.com/lists/oss-security/2008/08/13/8
• http://www.php.net/archive/2008.php#id2008-08-07-1
• http://www.securityfocus.com/archive/1/501376/100/0/threaded
• http://www.securitytracker.com/id?1020995
• http://www.us-cert.gov/cas/techalerts/TA09-133A.html
• http://www.vupen.com/english/advisories/2008/2336
• http://www.vupen.com/english/advisories/2009/1297
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44405