Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title yelp: User-assisted execution of arbitrary code
Informations
Name GLSA-200809-01 First vendor Publication 2008-09-04
Vendor Gentoo Last vendor Modification 2008-09-04
Severity (Vendor) Normal Revision N/A

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:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in yelp can lead to the execution of arbitrary code when opening a URI, for example through Firefox.

Background

yelp is the default help browser for GNOME.

Description

Aaron Grattafiori reported a format string vulnerability in the window_error() function in yelp-window.c.

Impact

A remote attacker can entice a user to open specially crafted "man:" or
"ghelp:" URIs in yelp, or an application using yelp such as Firefox or Evolution, and execute arbitrary code with the privileges of that user.

Workaround

There is no known workaround at this time.

Resolution

All yelp users running GNOME 2.22 should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=gnome-extra/yelp-2.22.1-r2"

All yelp users running GNOME 2.20 should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=gnome-extra/yelp-2.20.0-r1"

References

[ 1 ] CVE-2008-3533 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3533

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200809-01.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-200809-01.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-134 Uncontrolled Format String (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:17784
 
Oval ID: oval:org.mitre.oval:def:17784
Title: USN-638-1 -- yelp vulnerability
Description: Aaron Grattafiori discovered that the Gnome Help Viewer did not handle format strings correctly when displaying certain error messages.
Family: unix Class: patch
Reference(s): USN-638-1
CVE-2008-3533
 Version: 7
Platform(s): Ubuntu 7.10
Ubuntu 8.04
 Product(s): yelp
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1

OpenVAS Exploits

Date Description
2009-04-09 Name : Mandriva Update for yelp MDVSA-2008:175 (yelp)
File : nvt/gb_mandriva_MDVSA_2008_175.nasl
2009-03-23 Name : Ubuntu Update for yelp vulnerability USN-638-1
File : nvt/gb_ubuntu_USN_638_1.nasl
2009-02-17 Name : Fedora Update for yelp FEDORA-2008-7293
File : nvt/gb_fedora_2008_7293_yelp_fc8.nasl
2008-09-24 Name : Gentoo Security Advisory GLSA 200809-01 (yelp)
File : nvt/glsa_200809_01.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
47513 Yelp yelp-window.c gtk_message_dialog Crafted URI Format String

Nessus® Vulnerability Scanner

Date Description
2009-07-21 Name : The remote openSUSE host is missing a security update.
File : suse_11_0_yelp-081024.nasl - Type : ACT_GATHER_INFO
2009-04-23 Name : The remote Mandriva Linux host is missing a security update.
File : mandriva_MDVSA-2008-175.nasl - Type : ACT_GATHER_INFO
2008-09-10 Name : The remote Fedora host is missing a security update.
File : fedora_2008-7293.nasl - Type : ACT_GATHER_INFO
2008-09-05 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200809-01.nasl - Type : ACT_GATHER_INFO
2008-08-28 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-638-1.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:36:02
  • Multiple Updates