Executive Summary

Summary
Title lynx security update
Informations
Name RHSA-2005:839 First vendor Publication 2005-11-11
Vendor RedHat Last vendor Modification 2005-11-11
Severity (Vendor) Critical Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An updated lynx package that corrects a security flaw is now available.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux ES version 2.1 - i386 Red Hat Enterprise Linux WS version 2.1 - i386 Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

Lynx is a text-based Web browser.

An arbitrary command execute bug was found in the lynx "lynxcgi:" URI handler. An attacker could create a web page redirecting to a malicious URL which could execute arbitrary code as the user running lynx. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-2929 to this issue.

Users should update to this erratum package, which contains a backported patch to correct this issue.

4. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

172972 - CVE-2005-2929 lynx arbitrary command execution

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2005-839.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:9712
 
Oval ID: oval:org.mitre.oval:def:9712
Title: Lynx 2.8.5, and other versions before 2.8.6dev.15, allows remote attackers to execute arbitrary commands via (1) lynxcgi:, (2) lynxexec, and (3) lynxprog links, which are not properly restricted in the default configuration in some environments.
Description: Lynx 2.8.5, and other versions before 2.8.6dev.15, allows remote attackers to execute arbitrary commands via (1) lynxcgi:, (2) lynxexec, and (3) lynxprog links, which are not properly restricted in the default configuration in some environments.
Family: unix Class: vulnerability
Reference(s): CVE-2005-2929
Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3

OpenVAS Exploits

Date Description
2009-09-15 Name : Gentoo Security Advisory GLSA 200909-15 (lynx)
File : nvt/glsa_200909_15.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200511-09 (lynx)
File : nvt/glsa_200511_09.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
20814 Lynx lynxcgi: URI Handler Arbitrary Command Execution

Nessus® Vulnerability Scanner

Date Description
2009-09-14 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200909-15.nasl - Type : ACT_GATHER_INFO
2006-07-03 Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2005-839.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Mandrake Linux host is missing a security update.
File : mandrake_MDKSA-2005-211.nasl - Type : ACT_GATHER_INFO
2005-11-15 Name : The remote Fedora Core host is missing a security update.
File : fedora_2005-1078.nasl - Type : ACT_GATHER_INFO
2005-11-15 Name : The remote Fedora Core host is missing a security update.
File : fedora_2005-1079.nasl - Type : ACT_GATHER_INFO
2005-11-15 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200511-09.nasl - Type : ACT_GATHER_INFO
2005-11-15 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2005-839.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-02-17 11:49:47
  • Multiple Updates