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CVE
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CVE-2011-4815Date: (C)2011-12-29   (M)2018-06-20


Ruby (aka CRuby) before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 7.8
Exploit Score: 10.0
Impact Score: 6.9
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality: NONE
Integrity: NONE
Availability: COMPLETE
  
Reference:
SECTRACK-1026474
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
SECUNIA-47405
SECUNIA-47822
APPLE-SA-2012-05-09-1
JVN#90615481
JVNDB-2012-000066
RHSA-2012:0069
RHSA-2012:0070
VU#903934
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606
http://support.apple.com/kb/HT5281
http://www.nruns.com/_downloads/advisory28122011.pdf
http://www.ocert.org/advisories/ocert-2011-003.html
http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/
ruby-hash-dos(72020)

CWE    1
CWE-20
OVAL    13
oval:org.secpod.oval:def:104225
oval:org.secpod.oval:def:5820
oval:org.secpod.oval:def:202291
oval:org.secpod.oval:def:202289
...

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