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USN-4236-3: Libgcrypt vulnerability

28 January 2020

Libgcrypt could be made to expose sensitive information.




USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

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 14.04
Ubuntu 12.04

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


Related notices

  • USN-4236-1: libgcrypt20-doc, libgcrypt11-dev, libgcrypt20, libgcrypt20-udeb, libgcrypt-mingw-w64-dev, libgcrypt20-dev
  • USN-4236-2: libgcrypt20-doc, libgcrypt11-dev, libgcrypt20, libgcrypt20-udeb, libgcrypt20-dev