Operating System:

[Ubuntu]

Published:

16 August 2018

Protect yourself against future threats.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2382
                            GnuPG vulnerability
                              16 August 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           gnupg
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7526  

Reference:         ASB-2017.0219
                   ESB-2017.2201
                   ESB-2017.1659

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3733-2

- --------------------------BEGIN INCLUDED TEXT--------------------

==========================================================================
Ubuntu Security Notice USN-3733-2
August 15, 2018

gnupg vulnerability
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

GnuPG could be made to expose sensitive information.

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

Details:

USN-3733-1 fixed a vulnerability in GnuPG. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot
Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal,
and Yuval Yarom discovered that GnuPG is vulnerable to a cache side-
channel attack. A local attacker could use this attack to recover RSA
private keys.

Update instructions:

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

Ubuntu 12.04 ESM:
 gnupg1.4.11-3ubuntu2.12
 gnupg-curl1.4.11-3ubuntu2.12
 gpgv1.4.11-3ubuntu2.12

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

References:
 https://usn.ubuntu.com/usn/usn-3733-2
 https://usn.ubuntu.com/usn/usn-3733-1
 CVE-2017-7526

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=Enig
-----END PGP SIGNATURE-----