CVE-2006-4812: Code Injection
First published: Mon Oct 09 2006(Updated: )
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).
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | =5.1.5 | |
| PHP | =5.1.2 | |
| PHP | =4.2.0 | |
| PHP | =5.1.1 | |
| PHP | =4.1.0 | |
| PHP | =5.1.6 | |
| PHP | =4.0.4 | |
| PHP | =4.0.5 | |
| PHP | =5.0-rc1 | |
| PHP | =5.0.5 | |
| PHP | =5.0.1 | |
| PHP | =5.1.4 | |
| PHP | =4.0.7-rc2 | |
| PHP | =5.0.4 | |
| PHP | =4.0.7-rc1 | |
| PHP | =4.2.2 | |
| PHP | =4.0.3-patch1 | |
| PHP | =4.0.7 | |
| PHP | =4.0.2 | |
| PHP | =5.0-rc3 | |
| PHP | =4.1.1 | |
| PHP | =5.0.3 | |
| PHP | =4.2.3 | |
| PHP | =5.1.0 | |
| PHP | =4.0.1-patch1 | |
| PHP | =4.0 | |
| PHP | =4.0.1-patch2 | |
| PHP | =4.0.6 | |
| PHP | =5.0-rc2 | |
| PHP | =4.1.2 | |
| PHP | =4.0.7-rc3 | |
| PHP | =5.1.3 | |
| PHP | =4.2.1 | |
| PHP | =4.0.1 | |
| PHP | =5.0.2 | |
| PHP | =4.2 | |
| PHP | =4.0.3 | |
| PHP | =5.0.0 |
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Reference Links
- http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_alloc.c?r1=1.161&r2=1.162
- http://lists.suse.com/archive/suse-security-announce/2006-Oct/0002.html
- http://rhn.redhat.com/errata/RHSA-2006-0688.html
- http://rhn.redhat.com/errata/RHSA-2006-0708.html
- http://secunia.com/advisories/22280
- http://secunia.com/advisories/22281
- http://secunia.com/advisories/22300
- http://secunia.com/advisories/22331
- http://secunia.com/advisories/22338
- http://secunia.com/advisories/22533
- http://secunia.com/advisories/22538
- http://secunia.com/advisories/22650
- http://securityreason.com/securityalert/1691
- http://securitytracker.com/id?1016984
- http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm
- http://support.avaya.com/elmodocs2/security/ASA-2006-234.htm
- http://www.gentoo.org/security/en/glsa/glsa-200610-14.xml
- http://www.hardened-php.net/advisory_092006.133.html
- http://www.hardened-php.net/files/CVE-2006-4812.patch
- http://www.securityfocus.com/archive/1/448014/100/0/threaded
- http://www.securityfocus.com/archive/1/448953/100/0/threaded
- http://www.securityfocus.com/bid/20349
- http://www.trustix.org/errata/2006/0055
- http://www.ubuntu.com/usn/usn-362-1
- http://www.vupen.com/english/advisories/2006/3922
- https://exchange.xforce.ibmcloud.com/vulnerabilities/29362
Frequently Asked Questions
What is the severity of CVE-2006-4812?
CVE-2006-4812 has been classified as a critical severity vulnerability due to its potential to allow remote code execution.
How do I fix CVE-2006-4812?
To fix CVE-2006-4812, it is recommended to update PHP to a version higher than 5.1.6 or 4.3.0.
What versions of PHP are affected by CVE-2006-4812?
CVE-2006-4812 affects PHP versions 5.1.6 and earlier, as well as version 4.2.3 and earlier.
What exploit techniques can be used with CVE-2006-4812?
Attacks exploiting CVE-2006-4812 typically involve providing a large input to the unserialize function that results in an integer overflow.
Who can be affected by CVE-2006-4812?
Any application using vulnerable versions of PHP that allow untrusted data to be passed to the unserialize function could be affected by CVE-2006-4812.
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