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Last updated: 9/2/2014 10:30:46 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2009-4124

Original release date: 12/11/2009
Last revised: 12/19/2009
Source: US-CERT/NIST

Overview

Heap-based buffer overflow in the rb_str_justify function in string.c in Ruby 1.9.1 before 1.9.1-p376 allows context-dependent attackers to execute arbitrary code via unspecified vectors involving (1) String#ljust, (2) String#center, or (3) String#rjust. NOTE: some of these details are obtained from third party information.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 10.0 (HIGH) (AV:N/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: SECUNIA
Name: 37660
Type: Advisory
External Source: VUPEN
Name: ADV-2009-3471
Type: Advisory
External Source: CONFIRM
Name: http://www.ruby-lang.org/en/news/2009/12/07/heap-overflow-in-string/
Type: Advisory; Patch Information
External Source: XF
Name: ruby-rbstrjustify-bo(54674)
External Source: BID
Name: 37278
External Source: OSVDB
Name: 60880

Technical Details

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