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USN-5257-1: ldns vulnerabilities

31 January 2022

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



  • ldns - ldns library for DNS programming


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

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

Ubuntu 18.04
Ubuntu 16.04

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