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Ubuntu 18.04 LTS, 16.04 ESM: USN-5257-1 Critical ldns Information Leak

ubuntu
Calendar Grey January 31, 2022
Dist Ubuntu Esm H88
Ubuntu USN-5260-1 alerts users about vulnerabilities in the libx11 package across specific releases and recommends urgent patches.
ldns could be made to expose sensitive information if it received a specially crafted input.

Summary

ldns could be made to expose sensitive information if it received

a specially crafted input.

Software Description:

- 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)

Topics%20covered

Topics Covered

security advisory Ubuntu sensitive information input handling ldns

Update Instructions

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

Ubuntu 18.04 LTS:
  libldns2                        1.7.0-3ubuntu4.1

Ubuntu 16.04 ESM:
  libldns1                        1.6.17-8ubuntu0.1+esm1

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

References

https://ubuntu.com/security/notices/USN-5257-1

CVE-2020-19860, CVE-2020-19861

Severity
critical
Lowest
Low
Medium
High
Critical

January 31, 2022

Topics%20covered

Topics Covered

security advisory Ubuntu sensitive information input handling ldns

Package Information

https://launchpad.net/ubuntu/+source/ldns/1.7.0-3ubuntu4.1

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