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CentOS 4 / 5 : ruby (CESA-2008:0561)
critical Nessus Plugin ID 43694
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated ruby packages that fix several security issues are now available for Red Hat Enterprise Linux 4 and 5.This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Ruby is an interpreted scripting language for quick and easy object-oriented programming.
Multiple integer overflows leading to a heap overflow were discovered in the array- and string-handling code used by Ruby. An attacker could use these flaws to crash a Ruby application or, possibly, execute arbitrary code with the privileges of the Ruby application using untrusted inputs in array or string operations. (CVE-2008-2376, CVE-2008-2662, CVE-2008-2663, CVE-2008-2725, CVE-2008-2726)
It was discovered that Ruby used the alloca() memory allocation function in the format (%) method of the String class without properly restricting maximum string length. An attacker could use this flaw to crash a Ruby application or, possibly, execute arbitrary code with the privileges of the Ruby application using long, untrusted strings as format strings. (CVE-2008-2664)
Red Hat would like to thank Drew Yao of the Apple Product Security team for reporting these issues.
Users of Ruby should upgrade to these updated packages, which contain a backported patch to resolve these issues.
Solution
Update the affected ruby packages.See Also
http://www.nessus.org/u?21d2cfe8
http://www.nessus.org/u?afd701a7
Plugin Details
Severity: Critical
ID: 43694
File Name: centos_RHSA-2008-0561.nasl
Version: 1.17
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 1/6/2010
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:centos:centos:ruby-devel, p-cpe:/a:centos:centos:ruby-libs, p-cpe:/a:centos:centos:ruby-rdoc, p-cpe:/a:centos:centos:ruby, p-cpe:/a:centos:centos:ruby-docs, p-cpe:/a:centos:centos:ruby-irb, p-cpe:/a:centos:centos:ruby-ri, cpe:/o:centos:centos:4, cpe:/o:centos:centos:5, p-cpe:/a:centos:centos:ruby-tcltk, p-cpe:/a:centos:centos:irb, p-cpe:/a:centos:centos:ruby-mode
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 7/14/2008
Vulnerability Publication Date: 6/24/2008
Reference Information
CVE: CVE-2008-2376, CVE-2008-2662, CVE-2008-2663, CVE-2008-2664, CVE-2008-2725, CVE-2008-2726