Vulnerability Monitor

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CVE-2012-5371

Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before r37575 computes hash values without properly 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, as demonstrated by a universal multicollision attack against a variant of the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4815.

Published

2012-11-28T13:03:10.153

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-310
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application ruby-lang ruby ≤ 1.9.3 Yes
Application ruby-lang ruby 1.9 Yes
Application ruby-lang ruby 1.9.1 Yes
Application ruby-lang ruby 1.9.2 Yes
Application ruby-lang ruby 1.9.3 Yes
Application ruby-lang ruby 1.9.3 Yes
Application ruby-lang ruby 1.9.3 Yes
Application ruby-lang ruby 1.9.3 Yes
Application ruby-lang ruby 2.0 Yes
References