Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title libssh vulnerabilities
Informations
Name USN-1640-1 First vendor Publication 2012-11-26
Vendor Ubuntu Last vendor Modification 2012-11-26
Severity (Vendor) N/A 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: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

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10 - Ubuntu 12.04 LTS - Ubuntu 11.10 - Ubuntu 10.04 LTS

Summary:

linssh could be made to crash or run programs if it received specially crafted network traffic.

Software Description: - libssh: A tiny C SSH library

Details:

Xi Wang and Florian Weimer discovered that libssh incorrectly handled memory. A remote attacker could use this to cause libssh to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2012-4559, CVE-2012-4560, CVE-2012-4561, CVE-2012-4562)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.10:
libssh-4 0.5.2-1ubuntu0.12.10.1

Ubuntu 12.04 LTS:
libssh-4 0.5.2-1ubuntu0.12.04.1

Ubuntu 11.10:
libssh-4 0.5.2-1ubuntu0.11.10.1

Ubuntu 10.04 LTS:
libssh-4 0.4.2-1ubuntu1.1

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1640-1
CVE-2012-4559, CVE-2012-4560, CVE-2012-4561, CVE-2012-4562

Package Information:
https://launchpad.net/ubuntu/+source/libssh/0.5.2-1ubuntu0.12.10.1
https://launchpad.net/ubuntu/+source/libssh/0.5.2-1ubuntu0.12.04.1
https://launchpad.net/ubuntu/+source/libssh/0.5.2-1ubuntu0.11.10.1
https://launchpad.net/ubuntu/+source/libssh/0.4.2-1ubuntu1.1

Original Source

Url : http://www.ubuntu.com/usn/USN-1640-1

CWE : Common Weakness Enumeration

% Id Name
33 % CWE-399 Resource Management Errors
33 % CWE-189 Numeric Errors (CWE/SANS Top 25)
33 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:17868
 
Oval ID: oval:org.mitre.oval:def:17868
Title: USN-1640-1 -- libssh vulnerabilities
Description: linssh could be made to crash or run programs if it received specially crafted network traffic.
Family: unix Class: patch
Reference(s): USN-1640-1
CVE-2012-4559
CVE-2012-4560
CVE-2012-4561
CVE-2012-4562
 Version: 7
Platform(s): Ubuntu 12.10
Ubuntu 12.04
Ubuntu 11.10
Ubuntu 10.04
 Product(s): libssh
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8

OpenVAS Exploits

Date Description
2012-12-10 Name : Fedora Update for libssh FEDORA-2012-18687
File : nvt/gb_fedora_2012_18687_libssh_fc16.nasl
2012-12-04 Name : Debian Security Advisory DSA 2577-1 (libssh)
File : nvt/deb_2577_1.nasl
2012-12-04 Name : Mandriva Update for libssh MDVSA-2012:175 (libssh)
File : nvt/gb_mandriva_MDVSA_2012_175.nasl
2012-11-29 Name : Fedora Update for libssh FEDORA-2012-18677
File : nvt/gb_fedora_2012_18677_libssh_fc17.nasl
2012-11-29 Name : Ubuntu Update for libssh USN-1640-1
File : nvt/gb_ubuntu_USN_1640_1.nasl

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-836.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2012-840.nasl - Type : ACT_GATHER_INFO
2014-02-23 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201402-26.nasl - Type : ACT_GATHER_INFO
2013-04-20 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2013-045.nasl - Type : ACT_GATHER_INFO
2013-01-25 Name : The remote SuSE 11 host is missing a security update.
File : suse_11_libssh2-121120.nasl - Type : ACT_GATHER_INFO
2012-12-07 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2012-341-02.nasl - Type : ACT_GATHER_INFO
2012-12-07 Name : The remote Fedora host is missing a security update.
File : fedora_2012-18687.nasl - Type : ACT_GATHER_INFO
2012-12-03 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2577.nasl - Type : ACT_GATHER_INFO
2012-11-30 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2012-175.nasl - Type : ACT_GATHER_INFO
2012-11-29 Name : The remote Fedora host is missing a security update.
File : fedora_2012-18677.nasl - Type : ACT_GATHER_INFO
2012-11-27 Name : The remote Fedora host is missing a security update.
File : fedora_2012-18610.nasl - Type : ACT_GATHER_INFO
2012-11-27 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1640-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
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3
Date Informations
2014-02-17 12:01:06
  • Multiple Updates
2012-12-04 00:19:39
  • Multiple Updates
2012-12-01 13:26:08
  • Multiple Updates
2012-11-26 21:18:13
  • First insertion