CVE-2011-4885

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Summary

CVECVE-2011-4885
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-12-30 01:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionPHP 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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Php Php 5.0.0 All All All
Application Php Php 5.0.0 beta1 All All
Application Php Php 5.0.0 beta2 All All
Application Php Php 5.0.0 beta3 All All
Application Php Php 5.0.0 beta4 All All
Application Php Php 5.0.0 rc1 All All
Application Php Php 5.0.0 rc2 All All
Application Php Php 5.0.0 rc3 All All
Application Php Php 5.0.1 All All All
Application Php Php 5.0.2 All All All
Application Php Php 5.0.3 All All All
Application Php Php 5.0.4 All All All
Application Php Php 5.0.5 All All All
Application Php Php 5.1.1 All All All
Application Php Php 5.1.2 All All All
Application Php Php 5.1.3 All All All
Application Php Php 5.1.4 All All All
Application Php Php 5.1.5 All All All
Application Php Php 5.1.6 All All All
Application Php Php 5.2.0 All All All
Application Php Php 5.2.1 All All All
Application Php Php 5.2.10 All All All
Application Php Php 5.2.11 All All All
Application Php Php 5.2.12 All All All
Application Php Php 5.2.14 All All All
Application Php Php 5.2.15 All All All
Application Php Php 5.2.16 All All All
Application Php Php 5.2.17 All All All
Application Php Php 5.2.2 All All All
Application Php Php 5.2.3 All All All
Application Php Php 5.2.4 All All All
Application Php Php 5.2.5 All All All
Application Php Php 5.2.6 All All All
Application Php Php 5.2.7 All All All
Application Php Php 5.2.8 All All All
Application Php Php 5.2.9 All All All
Application Php Php 5.3.0 All All All
Application Php Php 5.3.1 All All All
Application Php Php 5.3.2 All All All
Application Php Php 5.3.3 All All All
Application Php Php 5.3.4 All All All
Application Php Php 5.3.5 All All All
Application Php Php 5.3.6 All All All
Application Php Php 5.3.7 All All All
Application Php Php All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Oracle Critical Patch Update - July 2012 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
PHP: Revision 321003 af854a3a-2127-422b-91ae-364da2661108 svn.php.net
HPSBMU02786 SSRT100877 rev.2 - HP System Management Homepage (SMH) Running on Linux, Windows, and VMware ESX, Remote Unauthorized Access, Disclosure of Information, Data Modification, Denial of Service (DoS), Execution of Arbitrary Code - c03360041 - HP Business Support Center af854a3a-2127-422b-91ae-364da2661108 h20000.www2.hp.com
[security-announce] SUSE-SU-2012:0411-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
PHP: Revision 321040 af854a3a-2127-422b-91ae-364da2661108 svn.php.net
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
Debian -- Security Information -- DSA-2399-2 php5 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
oCERT.org - oCERT Advisories af854a3a-2127-422b-91ae-364da2661108 www.ocert.org
HashCollision-DOS-POC/HashtablePOC.py at master · FireFart/HashCollision-DOS-POC · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com
VU#903934 - Hash table implementations vulnerable to algorithmic complexity attacks af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org US Government Resource
Security Alerts - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
About the security content of OS X Lion v10.7.4 and Security Update 2012-002 af854a3a-2127-422b-91ae-364da2661108 support.apple.com
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com
Support / Security / Advisories / / MDVSA-2013:150 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
PHP Web Form Hash Collision Denial Of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
[security-announce] openSUSE-SU-2012:0426-1: important: update for php5 af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
APPLE-SA-2012-05-09-1 OS X Lion v10.7.4 and Security Update 2012-002 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com
access.redhat.com af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
Support / Security / Advisories / / MDVSA-2011:197 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
Best 7 Best Internet Security Software in 2019 af854a3a-2127-422b-91ae-364da2661108 www.nruns.com
'[security bulletin] HPSBUX02741 SSRT100728 rev.1 - HP-UX Apache Running Tomcat Servlet Engine, Remot' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
'[security bulletin] HPSBOV02763 SSRT100826 rev.1 - HP Secure Web Server (SWS) for OpenVMS running PH' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
PHP Hashtables Denial of Service af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
PHP Hash Table Collision Bug Lets Remote Users Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
PHP Hash Table Collision Proof Of Concept af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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