[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


Libgcrypt could be made to expose sensitive information.

Software Description:
- libgcrypt20: LGPL Crypto library


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.


Package Information:

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20170914/14283c8a/attachment.sig>

More information about the ubuntu-security-announce mailing list