1. Ubuntu Security Notices
  2. USN-4400-1

USN-4400-1: nfs-utils vulnerability

Publication date

22 June 2020

Overview

nfs-utils could be made to overwrite files as the administrator.

Releases

Packages

Details

It was discovered that the nfs-utils package set incorrect permissions on
the /var/lib/nfs directory. An attacker could possibly use this issue to
escalate privileges.

It was discovered that the nfs-utils package set incorrect permissions on
the /var/lib/nfs directory. An attacker could possibly use this issue to
escalate privileges.

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
20.04 focal nfs-common –  1:1.3.4-2.5ubuntu3.3
19.10 eoan nfs-common –  1:1.3.4-2.5ubuntu2.1
18.04 bionic nfs-common –  1:1.3.4-2.1ubuntu5.3
16.04 xenial nfs-common –  1:1.2.8-9ubuntu12.3

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›