National Cyber Awareness System

Vulnerability Summary for CVE-2011-4885

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#903934

Name: VU#903934

Hyperlink:http://www.kb.cert.org/vuls/id/903934

External Source: MISC

Name: https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py

Hyperlink:https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py

External Source: XF

Name: php-hash-dos(72021)

Hyperlink:http://xforce.iss.net/xforce/xfdb/72021

External Source: SECTRACK

Name: 1026473

Hyperlink:http://www.securitytracker.com/id?1026473

External Source: BID

Name: 51193

Hyperlink:http://www.securityfocus.com/bid/51193

External Source: REDHAT

Name: RHSA-2012:0019

Hyperlink:http://www.redhat.com/support/errata/RHSA-2012-0019.html

External Source: CONFIRM

Name: http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html

Hyperlink:http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html

External Source: MISC

Name: http://www.ocert.org/advisories/ocert-2011-003.html

Hyperlink:http://www.ocert.org/advisories/ocert-2011-003.html

External Source: MISC

Name: http://www.nruns.com/_downloads/advisory28122011.pdf

Hyperlink:http://www.nruns.com/_downloads/advisory28122011.pdf

External Source: MANDRIVA

Name: MDVSA-2011:197

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2011:197

External Source: EXPLOIT-DB

Name: 18305

Hyperlink:http://www.exploit-db.com/exploits/18305

External Source: EXPLOIT-DB

Name: 18296

Hyperlink:http://www.exploit-db.com/exploits/18296

External Source: DEBIAN

Name: DSA-2399

Hyperlink:http://www.debian.org/security/2012/dsa-2399

External Source: CONFIRM

Name: http://svn.php.net/viewvc?view=revision&revision=321040

Hyperlink:http://svn.php.net/viewvc?view=revision&revision=321040

External Source: CONFIRM

Name: http://svn.php.net/viewvc?view=revision&revision=321003

Hyperlink:http://svn.php.net/viewvc?view=revision&revision=321003

External Source: CONFIRM

Name: http://support.apple.com/kb/HT5281

Hyperlink:http://support.apple.com/kb/HT5281

External Source: SECUNIA

Name: 48668

Hyperlink:http://secunia.com/advisories/48668

External Source: SECUNIA

Name: 47404

Hyperlink:http://secunia.com/advisories/47404

External Source: REDHAT

Name: RHSA-2012:0071

Hyperlink:http://rhn.redhat.com/errata/RHSA-2012-0071.html

External Source: HP

Name: HPSBUX02741

Hyperlink:http://marc.info/?l=bugtraq&m=132871655717248&w=2

External Source: SUSE

Name: openSUSE-SU-2012:0426

Hyperlink:http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html

External Source: APPLE

Name: APPLE-SA-2012-05-09-1

Hyperlink:http://lists.apple.com/archives/security-announce/2012/May/msg00001.html

External Source: HP

Name: SSRT100877

Hyperlink:http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041

External Source: HP

Name: HPSBMU02786

Hyperlink:http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041

External Source: BUGTRAQ

Name: 20111228 n.runs-SA-2011.004 - web programming languages and platforms - DoS through hash table

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html