#VU32831 Input validation error in PHP - CVE-2011-4885 

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Main Vulnerability Database Vulnerabilities #VU32831

#VU32831 Input validation error in PHP - CVE-2011-4885

Published: December 30, 2011 / Updated: July 29, 2020


Vulnerability identifier: #VU32831
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2011-4885
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vulnerable software:
PHP
Software vendor:
PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.


Remediation

Install update from vendor's website.

External links