Ubuntu Security Notices
USN-3689-2

USN-3689-2: Libgcrypt vulnerability

Publication date

19 June 2018

Overview

Libgcrypt could be made to expose sensitive information.

Releases

12.04

Packages

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release	Package Version
12.04 precise	libgcrypt11 – 1.5.0-3ubuntu0.8

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References

CVE-2018-0495

CVE-2018-0495