USN-3193-1: Nettle vulnerability
6 February 2017
nettle vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Nettle could be made to expose sensitive information over the network.
Software Description
- nettle - low level cryptographic library (public-key cryptos)
Details
It was discovered that Nettle incorrectly mitigated certain timing side-channel attacks. A remote attacker could possibly use this flaw to recover private keys.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 16.10
- libnettle6 - 3.2-1ubuntu0.16.10.1
- Ubuntu 16.04 LTS
- libnettle6 - 3.2-1ubuntu0.16.04.1
- Ubuntu 14.04 LTS
- libnettle4 - 2.7.1-1ubuntu0.2
- Ubuntu 12.04 LTS
- libnettle4 - 2.4-1ubuntu0.1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.