1. Ubuntu Security Notices
  2. USN-3689-1

USN-3689-1: Libgcrypt vulnerability

Publication date

19 June 2018

Overview

Libgcrypt could be made to expose sensitive information.

Releases

Packages

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.

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
18.04 bionic libgcrypt20 –  1.8.1-4ubuntu1.1
17.10 artful libgcrypt20 –  1.7.8-2ubuntu1.1
16.04 xenial libgcrypt20 –  1.6.5-2ubuntu0.5
14.04 trusty libgcrypt11 –  1.5.3-2ubuntu4.6

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References

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