1. Ubuntu Security Notices
  2. USN-3193-1

USN-3193-1: Nettle vulnerability

Publication date

6 February 2017

Overview

Nettle could be made to expose sensitive information over the network.

Releases

Packages

  • 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.

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

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
16.10 yakkety libnettle6 –  3.2-1ubuntu0.16.10.1
16.04 xenial libnettle6 –  3.2-1ubuntu0.16.04.1
14.04 trusty libnettle4 –  2.7.1-1ubuntu0.2
12.04 precise libnettle4 –  2.4-1ubuntu0.1

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References

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