Description

The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.

Remediation

References

CVE-2009-4418

Related Vulnerabilities

WordPress Plugin Download Plugin Security Bypass (1.6.0)

WordPress Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2007-5106)

Apache Tomcat Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2009-0580)

SugarCRM Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2019-17310)

Zope Web Application Server Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2023-44389)

Severity

Medium

Classification

CVE-2009-4418

Tags

Missing Update Known Vulnerabilities