VulnerabilityModified
CVE-2011-4885
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.
MEDIUM 5.0EPSS 83.4%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 83.4%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 83.37% probability · 100th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- php/php
- Source
- cve@mitre.org
References
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00016.html
- http://marc.info/?l=bugtraq&m=132871655717248&w=2
- http://marc.info/?l=bugtraq&m=133469208622507&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0071.html
- http://secunia.com/advisories/47404
- http://secunia.com/advisories/48668
- http://support.apple.com/kb/HT5281
- http://svn.php.net/viewvc?view=revision&revision=321003
- http://svn.php.net/viewvc?view=revision&revision=321040
- http://www.debian.org/security/2012/dsa-2399
- http://www.exploit-db.com/exploits/18296
- http://www.exploit-db.com/exploits/18305
- http://www.kb.cert.org/vuls/id/903934US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:197
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
- http://www.nruns.com/_downloads/advisory28122011.pdf
- http://www.ocert.org/advisories/ocert-2011-003.html
- http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
- http://www.redhat.com/support/errata/RHSA-2012-0019.html
- http://www.securityfocus.com/bid/51193
- http://www.securitytracker.com/id?1026473
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72021
- https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.