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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:
gnupg                           1.4.11-3ubuntu2.12
gnupg-curl                      1.4.11-3ubuntu2.12
gpgv                            1.4.11-3ubuntu2.12

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—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2
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=Ghrz
—–END PGP SIGNATURE—–
—