USN-3759-1: libtirpc vulnerabilities

5 September 2018

libtirpc vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in libtirpc.

Software Description

  • libtirpc - transport-independent RPC library - development files

Details

Aldy Hernandez discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-4429)

It was discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-14622)

It was discovered that libtirpc incorrectly handled certain strings. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-8779)

Update instructions

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

Ubuntu 18.04 LTS
libtirpc-dev - 0.2.5-1.2ubuntu0.1
libtirpc1 - 0.2.5-1.2ubuntu0.1
Ubuntu 16.04 LTS
libtirpc-dev - 0.2.5-1ubuntu0.1
libtirpc1 - 0.2.5-1ubuntu0.1
Ubuntu 14.04 LTS
libtirpc-dev - 0.2.2-5ubuntu2.1
libtirpc1 - 0.2.2-5ubuntu2.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make all the necessary changes.

References