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CVE
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CVE-2011-4885

Date: (C)2011-12-29   (M)2017-08-29
 
CVSS Score: 5.0Access Vector: NETWORK
Exploitability Subscore: 10.0Access Complexity: LOW
Impact Subscore: 2.9Authentication: NONE
 Confidentiality: NONE
 Integrity: NONE
 Availability: PARTIAL











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.

Reference:
SECTRACK-1026473
EXPLOIT-DB-18296
EXPLOIT-DB-18305
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
SECUNIA-47404
SECUNIA-48668
BID-51193
APPLE-SA-2012-05-09-1
DSA-2399
HPSBMU02786
HPSBUX02741
MDVSA-2011:197
MDVSA-2013:150
RHSA-2012:0019
RHSA-2012:0071
SSRT100826
SSRT100877
VU#903934
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.nruns.com/_downloads/advisory28122011.pdf
http://www.ocert.org/advisories/ocert-2011-003.html
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
openSUSE-SU-2012:0426
php-hash-dos(72021)

CPE    45
cpe:/a:php:php:5.3.2
cpe:/a:php:php:5.3.3
cpe:/a:php:php:5.3.4
cpe:/a:php:php:5.3.5
...
CWE    1
CWE-20
OVAL    34
oval:org.secpod.oval:def:1300027
oval:org.secpod.oval:def:103393
oval:org.secpod.oval:def:600718
oval:org.secpod.oval:def:600719
...

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