==========================================================================
Ubuntu Security Notice USN-3417-1
September 14, 2017

libgcrypt20 vulnerability
==========================================================================

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

– Ubuntu 17.04

Summary:

Libgcrypt could be made to expose sensitive information.

Software Description:
– libgcrypt20: LGPL Crypto library

Details:

Daniel Genkin, Luke Valenta, and Yuval Yarom discovered that Libgcrypt was
susceptible to an attack via side channels. A local attacker could use this
attack to recover Curve25519 private keys.

Update instructions:

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

Ubuntu 17.04:
libgcrypt20 1.7.6-1ubuntu0.2

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

References:
https://www.ubuntu.com/usn/usn-3417-1
CVE-2017-0379

Package Information:
https://launchpad.net/ubuntu/+source/libgcrypt20/1.7.6-1ubuntu0.2

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