[USN-3417-1] Libgcrypt vulnerability
Marc Deslauriers
marc.deslauriers at canonical.com
Thu Sep 14 17:05:16 UTC 2017
==========================================================================
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
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