Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-4815

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
30/12/2011
Last modified:
11/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* 1.8.7-p352 (including)
cpe:2.3:a:ruby-lang:ruby:1.8.7-p299:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7-p302:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7-p330:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7-p334:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools