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==========================================================================
Ubuntu Security Notice USN-3689-2
June 19, 2018

libgcrypt11 vulnerability
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

Libgcrypt could be made to expose sensitive information.

Software Description:
- libgcrypt11: LGPL Crypto library

Details:

USN-3689-1 fixed a vulnerability in Libgcrypt. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Keegan Ryan discovered that Libgcrypt was susceptible to a side-
 channel attack. A local attacker could possibly use this attack to
 recover ECDSA private keys.

Update instructions:

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

Ubuntu 12.04 ESM:
  libgcrypt11                     1.5.0-3ubuntu0.8

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

References:
  https://usn.ubuntu.com/usn/usn-3689-2
  https://usn.ubuntu.com/usn/usn-3689-1
  CVE-2018-0495
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