Executive Summary

Summary
Title Libgcrypt vulnerability
Informations
Name USN-3689-1 First vendor Publication 2018-06-19
Vendor Ubuntu Last vendor Modification 2018-06-19
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:L/AC:M/Au:N/C:P/I:N/A:N)
Cvss Base Score 1.9 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.04 LTS - Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Libgcrypt could be made to expose sensitive information.

Software Description: - libgcrypt20: LGPL Crypto library - libgcrypt11: LGPL Crypto library

Details:

Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel attack. A local attacker could possibly use this attack to recover ECDSA private keys.

Update instructions:

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

Ubuntu 18.04 LTS:
libgcrypt20 1.8.1-4ubuntu1.1

Ubuntu 17.10:
libgcrypt20 1.7.8-2ubuntu1.1

Ubuntu 16.04 LTS:
libgcrypt20 1.6.5-2ubuntu0.5

Ubuntu 14.04 LTS:
libgcrypt11 1.5.3-2ubuntu4.6

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

References:
https://usn.ubuntu.com/usn/usn-3689-1
CVE-2018-0495

Package Information:
https://launchpad.net/ubuntu/+source/libgcrypt20/1.8.1-4ubuntu1.1
https://launchpad.net/ubuntu/+source/libgcrypt20/1.7.8-2ubuntu1.1
https://launchpad.net/ubuntu/+source/libgcrypt20/1.6.5-2ubuntu0.5
https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.3-2ubuntu4.6

Original Source

Url : http://www.ubuntu.com/usn/USN-3689-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-203 Information Exposure Through Discrepancy

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 18
Application 1
Application 1
Os 6
Os 2
Os 1
Os 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2019-01-18 Name : The remote Fedora host is missing a security update.
File : fedora_2019-a8ffcff7ee.nasl - Type : ACT_GATHER_INFO
2019-01-08 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2019-1009.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-eaa7de17ae.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-1ea5beb4cf.nasl - Type : ACT_GATHER_INFO
2018-12-28 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1420.nasl - Type : ACT_GATHER_INFO
2018-12-10 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1392.nasl - Type : ACT_GATHER_INFO
2018-12-07 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1102.nasl - Type : ACT_GATHER_INFO
2018-11-16 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-3221.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1102.nasl - Type : ACT_GATHER_INFO
2018-09-10 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-2_0-0091.nasl - Type : ACT_GATHER_INFO
2018-09-10 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-1_0-0182.nasl - Type : ACT_GATHER_INFO
2018-07-12 Name : The remote Fedora host is missing a security update.
File : fedora_2018-98ab6b4e56.nasl - Type : ACT_GATHER_INFO
2018-07-02 Name : The remote Debian host is missing a security update.
File : debian_DLA-1405.nasl - Type : ACT_GATHER_INFO
2018-06-18 Name : The remote Fedora host is missing a security update.
File : fedora_2018-6788454ab6.nasl - Type : ACT_GATHER_INFO
2018-06-18 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4231.nasl - Type : ACT_GATHER_INFO
2018-06-14 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2018-164-01.nasl - Type : ACT_GATHER_INFO
2018-06-14 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_9b5162de6f3911e8818ee8e0b747a45a.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2019-01-08 00:18:59
  • First insertion