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CVE-2010-2531

4.3 · MEDIUM

The var_export function in PHP 5.2 before 5.2.14 and 5.3 before 5.3.3 flushes the output buffer to the user when certain fatal errors occur, even if display_errors is off, which allows remote attac…

Published Aug 20, 2010phpCWE-200EPSS 5.00%

Overview

CVE-2010-2531 is a medium-severity vulnerability affecting php php. It was published on August 20, 2010 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The var_export function in PHP 5.2 before 5.2.14 and 5.3 before 5.3.3 flushes the output buffer to the user when certain fatal errors occur, even if display_errors is off, which allows remote attackers to obtain sensitive information by causing the application to exceed limits for memory, execution time, or recursion.

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
phpphp>= 5.2.0, < 5.2.14Affected

References

Reflists.apple.com/archives/security-announce/2010//Aug/msg00003.htmlReflists.apple.com/archives/security-announce/2010//Nov/msg00000.htmlReflists.opensuse.org/opensuse-security-announce/2010-09/msg00006.htmlReflists.opensuse.org/opensuse-security-announce/2010-10/msg00000.htmlRefmarc.info/?l=bugtraq&m=130331363227777&w=2Refmarc.info/?l=bugtraq&m=133469208622507&w=2Refsecunia.com/advisories/42410Refsupport.apple.com/kb/HT4312Refsupport.apple.com/kb/HT4435Refsvn.php.net/viewvc/php/php-src/trunk/ext/standard/tests/general_functions/var_export_error2.phpt?view=log&pathrev=301143

How CyberStrike helps

Frequently asked questions

What is CVE-2010-2531?

CVE-2010-2531 is a medium-severity vulnerability affecting php php. It was published on August 20, 2010 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2010-2531?

This vulnerability has a CVSS 2.0 base score of 4.3, 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-2010-2531?

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-2010-2531?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-2531 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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