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 security update
Informations
Name DSA-2577 First vendor Publication 2012-12-01
Vendor Debian Last vendor Modification 2012-12-01
Severity (Vendor) N/A Revision 1

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

Multiple vulnerabilities were discovered in libssh by Florian Weimer and Xi Wang:

CVE-2012-4559: multiple double free() flaws CVE-2012-4561: multiple invalid free() flaws CVE-2012-4562: multiple improper overflow checks

Those could lead to a denial of service by making an ssh client linked to libssh crash, and maybe even arbitrary code execution.

For the stable distribution (squeeze), these problems have been fixed in version 0.4.5-3+squeeze1.

For the testing distribution (wheezy), these problems have been fixed in version 0.5.3-1.

For the unstable distribution (sid), these problems have been fixed in version 0.5.3-1.

We recommend that you upgrade your libssh packages.

Original Source

Url : http://www.debian.org/security/2012/dsa-2577

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-399 Resource Management Errors
33 % CWE-189 Numeric Errors (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:17817
 
Oval ID: oval:org.mitre.oval:def:17817
Title: DSA-2577-1 libssh - several
Description: Multiple vulnerabilities were discovered in libssh by Florian Weimer and Xi Wang:
Family: unix Class: patch
Reference(s): DSA-2577-1
CVE-2012-4559
CVE-2012-4561
CVE-2012-4562
CVE-2012-6063
Version: 7
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): libssh
Definition Synopsis:
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
2
3
Date Informations
2014-02-17 11:31:28
  • Multiple Updates
2012-12-19 13:26:44
  • Multiple Updates
2012-12-04 00:19:39
  • Multiple Updates
2012-12-01 17:19:28
  • First insertion