USN-2896-1: Libgcrypt vulnerability

Releases

• Ubuntu 15.10
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• libgcrypt11 - LGPL Crypto library
• libgcrypt20 - LGPL Crypto library

Details

Daniel Genkin, Lev Pachmanov, Itamar Pipman and Eran Tromer discovered
that Libgcrypt was susceptible to an attack via physical side channels. A
local attacker could use this attack to possibly recover private keys.

Update instructions

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

Ubuntu 15.10

• libgcrypt20 - 1.6.3-2ubuntu1.1

Ubuntu 14.04

• libgcrypt11 - 1.5.3-2ubuntu4.3

Ubuntu 12.04

• libgcrypt11 - 1.5.0-3ubuntu0.5

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

References

• CVE-2015-7511