Executive Summary

Summary
Title Libtasn1 vulnerability
Informations
Name USN-2957-2 First vendor Publication 2016-05-02
Vendor Ubuntu Last vendor Modification 2016-05-02
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:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 16.04 LTS

Summary:

Libtasn1 could be made to hang if it processed specially crafted data.

Software Description: - libtasn1-6: Library to manage ASN.1 structures

Details:

USN-2957-1 fixed a vulnerability in Libtasn1. This update provides the corresponding update for Ubuntu 16.04 LTS.

Original advisory details:

Pascal Cuoq and Miod Vallat discovered that Libtasn1 incorrectly handled
certain malformed DER certificates. A remote attacker could possibly use
this issue to cause applications using Libtasn1 to hang, resulting in a
denial of service.

Update instructions:

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

Ubuntu 16.04 LTS:
libtasn1-6 4.7-3ubuntu0.16.04.1

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

References:
http://www.ubuntu.com/usn/usn-2957-2
http://www.ubuntu.com/usn/usn-2957-1
CVE-2016-4008

Package Information:
https://launchpad.net/ubuntu/+source/libtasn1-6/4.7-3ubuntu0.16.04.1

Original Source

Url : http://www.ubuntu.com/usn/USN-2957-2

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 54
Os 4
Os 3
Os 1

Nessus® Vulnerability Scanner

Date Description
2018-08-17 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2016-0013.nasl - Type : ACT_GATHER_INFO
2017-03-28 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201703-05.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1600-1.nasl - Type : ACT_GATHER_INFO
2016-08-29 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-1601-1.nasl - Type : ACT_GATHER_INFO
2016-06-28 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-773.nasl - Type : ACT_GATHER_INFO
2016-06-15 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-716.nasl - Type : ACT_GATHER_INFO
2016-05-31 Name : The remote Debian host is missing a security update.
File : debian_DLA-495.nasl - Type : ACT_GATHER_INFO
2016-05-06 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3568.nasl - Type : ACT_GATHER_INFO
2016-05-03 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2957-1.nasl - Type : ACT_GATHER_INFO
2016-05-03 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2957-2.nasl - Type : ACT_GATHER_INFO
2016-04-28 Name : The remote Fedora host is missing a security update.
File : fedora_2016-96bfd9e873.nasl - Type : ACT_GATHER_INFO
2016-04-22 Name : The remote Fedora host is missing a security update.
File : fedora_2016-048ffb6235.nasl - Type : ACT_GATHER_INFO
2016-04-22 Name : The remote Fedora host is missing a security update.
File : fedora_2016-383b8250e6.nasl - Type : ACT_GATHER_INFO
2016-04-21 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_1b0d2938076611e694fa002590263bf5.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2016-05-11 00:36:19
  • Multiple Updates
2016-05-06 00:36:27
  • Multiple Updates
2016-05-04 13:29:44
  • Multiple Updates
2016-05-02 21:26:36
  • First insertion