ESB-2018.2284 - [Ubuntu] gnupg: Access privileged data - Existing account 2018-08-08

Printable version
PGP/GPG verifiable version

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

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

                               ESB-2018.2284
                            GnuPG vulnerability
                               8 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-2017.2550
                   ESB-2017.2201
                   ESB-2017.1671
                   ESB-2017.1659

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3733-1

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

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

==========================================================================
Ubuntu Security Notice USN-3733-1
August 07, 2018

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

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

- - - Ubuntu 16.04 LTS
- - - Ubuntu 14.04 LTS

Summary:

GnuPG could be made to expose sensitive information.

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

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 16.04 LTS:
  gnupg                           1.4.20-1ubuntu3.3
  gnupg-curl                      1.4.20-1ubuntu3.3
  gpgv                            1.4.20-1ubuntu3.3

Ubuntu 14.04 LTS:
  gnupg                           1.4.16-1ubuntu2.6
  gnupg-curl                      1.4.16-1ubuntu2.6
  gpgv                            1.4.16-1ubuntu2.6

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

References:
  https://usn.ubuntu.com/usn/usn-3733-1
  CVE-2017-7526, https://launchpad.net/bugs/1785176

Package Information:
  https://launchpad.net/ubuntu/+source/gnupg/1.4.20-1ubuntu3.3
  https://launchpad.net/ubuntu/+source/gnupg/1.4.16-1ubuntu2.6

- -----BEGIN PGP SIGNATURE-----

iQEzBAEBCgAdFiEEiOlTC8vdwgBRe16w9JjS2d59rZwFAltpWFIACgkQ9JjS2d59
rZyPrQf/VPt2TDffx0VcATRASWbufWwfCoLqi1WctpRX4AEACWX1Y9yv3BVhql/X
KFMfULBhtNh5D41o7H1SHUhQPdxSYStt/0meXeU90ufgmdw5xacNTTUvQtDbMp+P
OZj7dm/zer8WYbgqHGWWLcuu6gL5TQ+6Bqlxn6VnfZunUXSEL+EXWOQgSflgBae0
78pixw2AfBy82kB+PFcG8JkX9P4JGSjE3iJhXOer6RbiAAIhQ4VAM8NXHvENK3Ru
aHzu/NrEAHIlZGwYiwOCl7gFZn2X+BWJAVBEzNUSqu+p4+ZhZON127dtIo0Ni62J
wZltX5i0XZQrHOxzukbimZsiv+aM/g==
=X0Hg
- -----END PGP SIGNATURE-----

- --------------------------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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=lLjq
-----END PGP SIGNATURE-----

« Back to bulletins