CVE-2011-4885

Public Exploit

Description

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 89.47% Top 5%
Vendor Advisory hp.com Vendor Advisory marc.info Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory mandriva.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory marc.info Vendor Advisory mandriva.com Vendor Advisory apple.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041 vendor advisory
http://www.securitytracker.com/id?1026473 vdb entry
http://secunia.com/advisories/47404 third party advisory
http://marc.info/?l=bugtraq&m=133469208622507&w=2 vendor advisory
http://www.nruns.com/_downloads/advisory28122011.pdf
https://exchange.xforce.ibmcloud.com/vulnerabilities/72021 vdb entry
http://www.exploit-db.com/exploits/18296 exploit
http://www.debian.org/security/2012/dsa-2399 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.html vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:197 vendor advisory
http://www.exploit-db.com/exploits/18305 exploit
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html vendor advisory
http://secunia.com/advisories/48668 third party advisory
http://www.redhat.com/support/errata/RHSA-2012-0019.html vendor advisory
http://www.securityfocus.com/bid/51193 vdb entry
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
http://www.kb.cert.org/vuls/id/903934 third party advisory us government resource
http://svn.php.net/viewvc?view=revision&revision=321003
http://svn.php.net/viewvc?view=revision&revision=321040
http://rhn.redhat.com/errata/RHSA-2012-0071.html vendor advisory
http://marc.info/?l=bugtraq&m=132871655717248&w=2 vendor advisory
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html mailing list
http://support.apple.com/kb/HT5281
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150 vendor advisory
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html vendor advisory
http://www.ocert.org/advisories/ocert-2011-003.html

Frequently Asked Questions

What is the severity of CVE-2011-4885?
CVE-2011-4885 has been scored as a medium severity vulnerability.
How to fix CVE-2011-4885?
To fix CVE-2011-4885, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4885 being actively exploited in the wild?
It is possible that CVE-2011-4885 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~89% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.