Executive Summary

Summary
Title GnuPG vulnerability
Informations
Name USN-2059-1 First vendor Publication 2013-12-18
Vendor Ubuntu Last vendor Modification 2013-12-18
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:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 13.10 - Ubuntu 13.04 - Ubuntu 12.10 - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS

Summary:

GnuPG could expose sensitive information when performing decryption.

Software Description: - gnupg: GNU privacy guard - a free PGP replacement

Details:

Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was susceptible to an adaptive chosen ciphertext attack via acoustic emanations. A local attacker could use this attack to possibly recover private keys.

Update instructions:

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

Ubuntu 13.10:
gnupg 1.4.14-1ubuntu2.1

Ubuntu 13.04:
gnupg 1.4.12-7ubuntu1.3

Ubuntu 12.10:
gnupg 1.4.11-3ubuntu4.4

Ubuntu 12.04 LTS:
gnupg 1.4.11-3ubuntu2.5

Ubuntu 10.04 LTS:
gnupg 1.4.10-2ubuntu1.5

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

References:
http://www.ubuntu.com/usn/usn-2059-1
CVE-2013-4576

Package Information:
https://launchpad.net/ubuntu/+source/gnupg/1.4.14-1ubuntu2.1
https://launchpad.net/ubuntu/+source/gnupg/1.4.12-7ubuntu1.3
https://launchpad.net/ubuntu/+source/gnupg/1.4.11-3ubuntu4.4
https://launchpad.net/ubuntu/+source/gnupg/1.4.11-3ubuntu2.5
https://launchpad.net/ubuntu/+source/gnupg/1.4.10-2ubuntu1.5

Original Source

Url : http://www.ubuntu.com/usn/USN-2059-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-255 Credentials Management

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:20478
 
Oval ID: oval:org.mitre.oval:def:20478
Title: USN-2059-1 -- gnupg vulnerability
Description: GnuPG could expose sensitive information when performing decryption.
Family: unix Class: patch
Reference(s): USN-2059-1
CVE-2013-4576
Version: 5
Platform(s): Ubuntu 13.10
Ubuntu 13.04
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04
Product(s): gnupg
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:20781
 
Oval ID: oval:org.mitre.oval:def:20781
Title: DSA-2821-1 gnupg - side channel attack
Description: Genkin, Shamir and Tromer discovered that RSA key material could be extracted by using the sound generated by the computer during the decryption of some chosen cipher texts.
Family: unix Class: patch
Reference(s): DSA-2821-1
CVE-2013-4576
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/Linux 7
Debian GNU/kFreeBSD 6.0
Debian GNU/kFreeBSD 7
Product(s): gnupg
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21251
 
Oval ID: oval:org.mitre.oval:def:21251
Title: RHSA-2014:0016: gnupg security update (Moderate)
Description: GnuPG 1.x before 1.4.16 generates RSA keys using sequences of introductions with certain patterns that introduce a side channel, which allows physically proximate attackers to extract RSA keys via a chosen-ciphertext attack and acoustic cryptanalysis during decryption. NOTE: applications are not typically expected to protect themselves from acoustic side-channel attacks, since this is arguably the responsibility of the physical device. Accordingly, issues of this type would not normally receive a CVE identifier. However, for this issue, the developer has specified a security policy in which GnuPG should offer side-channel resistance, and developer-specified security-policy violations are within the scope of CVE.
Family: unix Class: patch
Reference(s): RHSA-2014:0016-00
CESA-2014:0016
CVE-2013-4576
Version: 6
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): gnupg
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23305
 
Oval ID: oval:org.mitre.oval:def:23305
Title: ELSA-2014:0016: gnupg security update (Moderate)
Description: GnuPG 1.x before 1.4.16 generates RSA keys using sequences of introductions with certain patterns that introduce a side channel, which allows physically proximate attackers to extract RSA keys via a chosen-ciphertext attack and acoustic cryptanalysis during decryption. NOTE: applications are not typically expected to protect themselves from acoustic side-channel attacks, since this is arguably the responsibility of the physical device. Accordingly, issues of this type would not normally receive a CVE identifier. However, for this issue, the developer has specified a security policy in which GnuPG should offer side-channel resistance, and developer-specified security-policy violations are within the scope of CVE.
Family: unix Class: patch
Reference(s): ELSA-2014:0016-00
CVE-2013-4576
Version: 6
Platform(s): Oracle Linux 5
Product(s): gnupg
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26715
 
Oval ID: oval:org.mitre.oval:def:26715
Title: DEPRECATED: ELSA-2014-0016 -- gnupg security update (moderate)
Description: [1.4.5-18.1] - fix CVE-2013-4576 acoustic side channel attack on RSA private keys
Family: unix Class: patch
Reference(s): ELSA-2014-0016
CVE-2013-4576
Version: 4
Platform(s): Oracle Linux 5
Product(s): gnupg
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 76

Nessus® Vulnerability Scanner

Date Description
2015-08-05 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2015-577.nasl - Type : ACT_GATHER_INFO
2014-02-05 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2014-278.nasl - Type : ACT_GATHER_INFO
2014-01-10 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20140108_gnupg_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2014-01-09 Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2014-0016.nasl - Type : ACT_GATHER_INFO
2014-01-09 Name : The remote Oracle Linux host is missing a security update.
File : oraclelinux_ELSA-2014-0016.nasl - Type : ACT_GATHER_INFO
2014-01-09 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-0016.nasl - Type : ACT_GATHER_INFO
2013-12-30 Name : The remote Fedora host is missing a security update.
File : fedora_2013-23615.nasl - Type : ACT_GATHER_INFO
2013-12-30 Name : The remote Fedora host is missing a security update.
File : fedora_2013-23678.nasl - Type : ACT_GATHER_INFO
2013-12-23 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2013-354-01.nasl - Type : ACT_GATHER_INFO
2013-12-23 Name : The remote Fedora host is missing a security update.
File : fedora_2013-23603.nasl - Type : ACT_GATHER_INFO
2013-12-20 Name : The remote Mandriva Linux host is missing a security update.
File : mandriva_MDVSA-2013-295.nasl - Type : ACT_GATHER_INFO
2013-12-19 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2821.nasl - Type : ACT_GATHER_INFO
2013-12-19 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_2e5715f867f711e39811b499baab0cbe.nasl - Type : ACT_GATHER_INFO
2013-12-19 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2059-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-02-17 12:02:53
  • Multiple Updates
2013-12-23 17:21:46
  • Multiple Updates
2013-12-21 13:22:01
  • Multiple Updates
2013-12-18 21:18:49
  • First insertion