Executive Summary

Summary
Title Libgcrypt vulnerabilities
Informations
Name USN-3347-1 First vendor Publication 2017-07-03
Vendor Ubuntu Last vendor Modification 2017-07-03
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:P/I:N/A:N)
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 17.04 - Ubuntu 16.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Libgcrypt.

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

Details:

Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and Yuval Yarom discovered that Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to recover RSA private keys. (CVE-2017-7526)

It was discovered that Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to possibly recover EdDSA private keys. This issue only applied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu 17.04. (CVE-2017-9526)

Update instructions:

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

Ubuntu 17.04:
libgcrypt20 1.7.6-1ubuntu0.1

Ubuntu 16.10:
libgcrypt20 1.7.2-2ubuntu1.1

Ubuntu 16.04 LTS:
libgcrypt20 1.6.5-2ubuntu0.3

Ubuntu 14.04 LTS:
libgcrypt11 1.5.3-2ubuntu4.5

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

References:
https://www.ubuntu.com/usn/usn-3347-1
CVE-2017-7526, CVE-2017-9526

Package Information:
https://launchpad.net/ubuntu/+source/libgcrypt20/1.7.6-1ubuntu0.1
https://launchpad.net/ubuntu/+source/libgcrypt20/1.7.2-2ubuntu1.1
https://launchpad.net/ubuntu/+source/libgcrypt20/1.6.5-2ubuntu0.3
https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.3-2ubuntu4.5

Original Source

Url : http://www.ubuntu.com/usn/USN-3347-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-310 Cryptographic Issues
50 % CWE-200 Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 18
Os 3
Os 2

Nessus® Vulnerability Scanner

Date Description
2018-08-17 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2017-0040.nasl - Type : ACT_GATHER_INFO
2018-06-11 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_7da0417f6b2411e884cc002590acae31.nasl - Type : ACT_GATHER_INFO
2017-09-05 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3960.nasl - Type : ACT_GATHER_INFO
2017-09-01 Name : The remote Debian host is missing a security update.
File : debian_DLA-1080.nasl - Type : ACT_GATHER_INFO
2017-08-03 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2017-213-01.nasl - Type : ACT_GATHER_INFO
2017-07-21 Name : The remote Fedora host is missing a security update.
File : fedora_2017-3b70d0b976.nasl - Type : ACT_GATHER_INFO
2017-07-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-22107b1986.nasl - Type : ACT_GATHER_INFO
2017-07-10 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-796.nasl - Type : ACT_GATHER_INFO
2017-07-07 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-1793-1.nasl - Type : ACT_GATHER_INFO
2017-07-07 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-1794-1.nasl - Type : ACT_GATHER_INFO
2017-07-07 Name : The remote Debian host is missing a security update.
File : debian_DLA-1015.nasl - Type : ACT_GATHER_INFO
2017-07-05 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3347-1.nasl - Type : ACT_GATHER_INFO
2017-07-05 Name : The remote Fedora host is missing a security update.
File : fedora_2017-a348b32eb5.nasl - Type : ACT_GATHER_INFO
2017-07-03 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_ed3bf4335d9211e7aa14e8e0b747a45a.nasl - Type : ACT_GATHER_INFO
2017-07-03 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3901.nasl - Type : ACT_GATHER_INFO
2017-06-30 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-743.nasl - Type : ACT_GATHER_INFO
2017-06-30 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2017-180-04.nasl - Type : ACT_GATHER_INFO
2017-06-20 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-1608-1.nasl - Type : ACT_GATHER_INFO
2017-06-14 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3880.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
1
2
3
Date Informations
2018-08-10 12:09:42
  • Multiple Updates
2017-11-04 09:25:52
  • Multiple Updates
2017-07-06 13:23:51
  • Multiple Updates
2017-07-03 21:22:40
  • First insertion