USN-5257-1: ldns vulnerabilities

Publication date

31 January 2022

Overview

ldns could be made to expose sensitive information if it received a specially crafted input.


Packages

  • ldns - ldns library for DNS programming

Details

It was discovered that ldns incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2020-19860, CVE-2020-19861)

It was discovered that ldns incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2020-19860, CVE-2020-19861)

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
18.04 bionic libldns2 –  1.7.0-3ubuntu4.1
16.04 xenial libldns1 –  1.6.17-8ubuntu0.1+esm1  

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