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CVE-2011-4153

5.0 · MEDIUM

PHP 5.3.8 does not always check the return value of the zend_strndup function, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via c…

Published Jan 18, 2012phpCWE-20EPSS 11.77%

Overview

CVE-2011-4153 is a medium-severity vulnerability affecting php php. It was published on January 18, 2012 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

PHP 5.3.8 does not always check the return value of the zend_strndup function, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted input to an application that performs strndup operations on untrusted string data, as demonstrated by the define function in zend_builtin_functions.c, and unspecified functions in ext/soap/php_sdl.c, ext/standard/syslog.c, ext/standard/browscap.c, ext/oci8/oci8.c, ext/com_dotnet/com_typeinfo.c, and main/php_open_temporary_file.c.

Remediation

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refarchives.neohapsis.com/archives/bugtraq/2012-01/0092.htmlRefcxsecurity.com/research/103Refh20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041Reflists.opensuse.org/opensuse-security-announce/2012-03/msg00013.htmlReflists.opensuse.org/opensuse-security-announce/2012-03/msg00016.htmlReflists.opensuse.org/opensuse-security-announce/2012-04/msg00001.htmlRefmarc.info/?l=bugtraq&m=134012830914727&w=2Refsecunia.com/advisories/48668Refwww.exploit-db.com/exploits/18370/Refarchives.neohapsis.com/archives/bugtraq/2012-01/0092.html

How CyberStrike helps

Frequently asked questions

What is CVE-2011-4153?

CVE-2011-4153 is a medium-severity vulnerability affecting php php. It was published on January 18, 2012 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2011-4153?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-4153?

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-4153?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-4153 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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