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[Full-disclosure] [PLSA 2008-35] Ruby: Denial of Service
From: Pınar Yanardağ <pinar_at_nospam>Date: Mon Sep 01 2008 - 01:22:30 GMT
To: pardus-security@pardus.org.tr
Pardus Linux Security Advisory 2008-35 security@pardus.org.tr
Date: 2008-09-01 Severity: 3 Type: Remote ------------------------------------------------------------------------
Summary
A vulnerability has been reported in Ruby, which can be exploited by malicious people to cause a DoS (Denial of Service).
Description
The vulnerability is caused due to an error in the REXML library when processing recursively nested XML entities. This can be exploited to cause a DoS via a specially crafted XML document.
Note: This vulnerability found by Luka Treiber and Mitja Kolsek of ACROS Security.
Affected packages:
Pardus 2008: ruby, all before 1.8.7_p72-17-5 ruby-mode, all before 1.8.7_p72-17-5 Pardus 2007: ruby, all before 1.8.7_p72-17-14 ruby-mode, all before 1.8.7_p72-17-5
Resolution
There are update(s) for ruby, ruby-mode. You can update them via Package Manager or with a single command from console:
Pardus 2008:
pisi up ruby ruby-mode
Pardus 2007:
pisi up ruby ruby-mode
References
- http://security.pardus.org.tr/en/2008-35
- http://bugs.pardus.org.tr/show_bug.cgi?id=8044
- http://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml/
- http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-3790
- http://secunia.com/advisories/31602