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USN-4236-2: Libgcrypt vulnerability

14 January 2020

Libgcrypt could be made to expose sensitive information.




USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides the
corresponding fix for Ubuntu 16.04 LTS.

Original advisory details:

It was discovered that Libgcrypt was susceptible to a ECDSA timing attack.
An attacker could possibly use this attack to recover sensitive

Update instructions

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

Ubuntu 16.04

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


Related notices

  • USN-4236-1: libgcrypt11-dev, libgcrypt20, libgcrypt-mingw-w64-dev, libgcrypt20-doc, libgcrypt20-udeb, libgcrypt20-dev
  • USN-4236-3: libgcrypt11-doc, libgcrypt11-dev, libgcrypt11, libgcrypt11-udeb