ID CVE-2006-4812
Summary Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote attackers to execute arbitrary code via an argument to the unserialize PHP function with a large value for the number of array elements, which triggers the overflow in the Zend Engine ecalloc function (Zend/zend_alloc.c).
References
Vulnerable Configurations
  • cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.1:patch1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.1:patch2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.3:patch1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.7:rc1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.7:rc2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.0.7:rc3:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:*
    cpe:2.3:a:php:php:4.2:*:dev:*:*:*:*:*
  • cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:4.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:*
    cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:*
CVSS
Base: 10.0 (as of 30-10-2018 - 16:25)
Impact:
Exploitability:
CWE CWE-94
CAPEC
  • Code Injection
    An adversary exploits a weakness in input validation on the target to inject new code into that which is currently executing. This differs from code inclusion in that code inclusion involves the addition or replacement of a reference to a code file, which is subsequently loaded by the target and used as part of the code of some application.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files. When the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
  • Manipulating User-Controlled Variables
    This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
cvss-vector via4 AV:N/AC:L/Au:N/C:C/I:C/A:C
redhat via4
advisories
  • rhsa
    id RHSA-2006:0688
  • rhsa
    id RHSA-2006:0708
rpms
  • php-0:5.1.4-1.el4s1.4
  • php-bcmath-0:5.1.4-1.el4s1.4
  • php-dba-0:5.1.4-1.el4s1.4
  • php-debuginfo-0:5.1.4-1.el4s1.4
  • php-devel-0:5.1.4-1.el4s1.4
  • php-gd-0:5.1.4-1.el4s1.4
  • php-imap-0:5.1.4-1.el4s1.4
  • php-ldap-0:5.1.4-1.el4s1.4
  • php-mbstring-0:5.1.4-1.el4s1.4
  • php-mysql-0:5.1.4-1.el4s1.4
  • php-ncurses-0:5.1.4-1.el4s1.4
  • php-odbc-0:5.1.4-1.el4s1.4
  • php-pdo-0:5.1.4-1.el4s1.4
  • php-pgsql-0:5.1.4-1.el4s1.4
  • php-snmp-0:5.1.4-1.el4s1.4
  • php-soap-0:5.1.4-1.el4s1.4
  • php-xml-0:5.1.4-1.el4s1.4
  • php-xmlrpc-0:5.1.4-1.el4s1.4
  • php-0:4.1.2-2.12
  • php-devel-0:4.1.2-2.12
  • php-imap-0:4.1.2-2.12
  • php-ldap-0:4.1.2-2.12
  • php-manual-0:4.1.2-2.12
  • php-mysql-0:4.1.2-2.12
  • php-odbc-0:4.1.2-2.12
  • php-pgsql-0:4.1.2-2.12
refmap via4
bid 20349
bugtraq 20061009 Advisory 09/2006: PHP unserialize() Array Creation Integer Overflow
confirm
gentoo GLSA-200610-14
misc http://www.hardened-php.net/advisory_092006.133.html
openpkg OpenPKG-SA-2006.023
sectrack 1016984
secunia
  • 22280
  • 22281
  • 22300
  • 22331
  • 22338
  • 22533
  • 22538
  • 22650
sreason 1691
suse SUSE-SA:2006:059
trustix 2006-0055
ubuntu USN-362-1
vupen ADV-2006-3922
xf php-ecalloc-integer-overflow(29362)
statements via4
contributor Mark J Cox
lastmodified 2008-06-26
organization Red Hat
statement Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch. This issue did not affect the versions of php as shipped with Red Hat Enterprise Linux 3, and 4.
Last major update 30-10-2018 - 16:25
Published 10-10-2006 - 04:06
Last modified 30-10-2018 - 16:25
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