Executive Summary

Summary
Title OpenConnect: User-assisted execution of arbitrary code
Informations
Name GLSA-201405-18 First vendor Publication 2014-05-18
Vendor Gentoo Last vendor Modification 2014-05-18
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:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A buffer overflow in OpenConnect could result in execution of arbitrary code or Denial of Service.

Background

OpenConnect is a free client for Cisco AnyConnect SSL VPN software.

Description

A stack-based buffer overflow error has been discovered in OpenConnect.

Impact

A remote attacker could entice a user to connect to a malicious VPN server, possibly resulting in execution of arbitrary code with the privileges of the process, or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All OpenConnect users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/openconnect-4.08"

References

[ 1 ] CVE-2012-6128
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6128

Availability

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

http://security.gentoo.org/glsa/glsa-201405-18.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201405-18.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18546
 
Oval ID: oval:org.mitre.oval:def:18546
Title: DSA-2623-1 openconnect - buffer overflow
Description: Kevin Cernekee discovered that a malicious VPN gateway can send crafted responses which trigger stack-based buffer overflows.
Family: unix Class: patch
Reference(s): DSA-2623-1
CVE-2012-6128
 Version: 7
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
 Product(s): openconnect
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 39

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-429.nasl - Type : ACT_GATHER_INFO
2014-05-19 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201405-18.nasl - Type : ACT_GATHER_INFO
2013-04-20 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2013-108.nasl - Type : ACT_GATHER_INFO
2013-02-25 Name : The remote Fedora host is missing a security update.
File : fedora_2013-2472.nasl - Type : ACT_GATHER_INFO
2013-02-25 Name : The remote Fedora host is missing a security update.
File : fedora_2013-2498.nasl - Type : ACT_GATHER_INFO
2013-02-15 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2623.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2014-05-20 13:23:31
  • Multiple Updates
2014-05-18 17:20:02
  • First insertion