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CVE-2010-4645

5.0 · MEDIUM

strtod.c, as used in the zend_strtod function in PHP 5.2 before 5.2.17 and 5.3 before 5.3.5, and other products, allows context-dependent attackers to cause a denial of service (infinite loop) via…

Published Jan 11, 2011phpCWE-189EPSS 15.10%

Overview

CVE-2010-4645 is a medium-severity vulnerability affecting php php. It was published on January 11, 2011 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

strtod.c, as used in the zend_strtod function in PHP 5.2 before 5.2.17 and 5.3 before 5.3.5, and other products, allows context-dependent attackers to cause a denial of service (infinite loop) via a certain floating-point value in scientific notation, which is not properly handled in x87 FPU registers, as demonstrated using 2.2250738585072011e-308.

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

Refbugs.php.net/53632Refhal.archives-ouvertes.fr/docs/00/28/14/29/PDF/floating-point-article.pdfReflists.apple.com/archives/Security-announce/2011//Oct/msg00003.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-January/053333.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-January/053355.htmlRefmarc.info/?l=bugtraq&m=133226187115472&w=2Refmarc.info/?l=bugtraq&m=133469208622507&w=2Refsecunia.com/advisories/42812Refsecunia.com/advisories/42843Refsecunia.com/advisories/43051

How CyberStrike helps

Frequently asked questions

What is CVE-2010-4645?

CVE-2010-4645 is a medium-severity vulnerability affecting php php. It was published on January 11, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2010-4645?

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-2010-4645?

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-2010-4645?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-4645 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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