Detections
Analytics
Mandriva Linux Security Advisory : ruby (MDVSA-2008:226)
high Nessus Plugin ID 38018
Synopsis
The remote Mandriva Linux host is missing one or more security updates.Description
A denial of service condition was found in Ruby's regular expression engine. If a Ruby script tried to process a large amount of data via a regular expression, it could cause Ruby to enter an infinite loop and crash (CVE-2008-3443).A number of flaws were found in Ruby that could allow an attacker to create a carefully crafted script that could allow for the bypass of certain safe-level restrictions (CVE-2008-3655).
A denial of service vulnerability was found in Ruby's HTTP server toolkit, WEBrick. A remote attacker could send a specially crafted HTTP request to a WEBrick server that would cause it to use an excessive amount of CPU time (CVE-2008-3656).
An insufficient taintness check issue was found in Ruby's DL module, a module that provides direct access to the C language functions. This flaw could be used by an attacker to bypass intended safe-level restrictions by calling external C functions with the arguments from an untrusted tainted input (CVE-2008-3657).
A denial of service condition in Ruby's XML document parsing module (REXML) could cause a Ruby application using the REXML module to use an excessive amount of CPU and memory via XML documents with large XML entitity definitions recursion (CVE-2008-3790).
The Ruby DNS resolver library used predictable transaction IDs and a fixed source port when sending DNS requests. This could be used by a remote attacker to spoof a malicious reply to a DNS query (CVE-2008-3905).
The updated packages have been patched to correct these issues.
Solution
Update the affected packages.Plugin Details
Severity: High
ID: 38018
File Name: mandriva_MDVSA-2008-226.nasl
Version: 1.17
Type: local
Family: Mandriva Local Security Checks
Published: 4/23/2009
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Vulnerability Information
CPE: p-cpe:/a:mandriva:linux:ruby, p-cpe:/a:mandriva:linux:ruby-devel, p-cpe:/a:mandriva:linux:ruby-doc, p-cpe:/a:mandriva:linux:ruby-tk, cpe:/o:mandriva:linux:2008.0, cpe:/o:mandriva:linux:2008.1
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list
Patch Publication Date: 11/6/2008
Reference Information
CVE: CVE-2008-3443, CVE-2008-3655, CVE-2008-3656, CVE-2008-3657, CVE-2008-3790, CVE-2008-3905