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.

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, Continuous 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

BID: 29903, 30036

CWE: 189, 399

RHSA: 2008:0561

Detections

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