USN-4400-1: nfs-utils vulnerability
nfs-utils vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
Summary
nfs-utils could be made to overwrite files as the administrator.
Software Description
- nfs-utils – None
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.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 20.04 LTS
- nfs-common – 1:1.3.4-2.5ubuntu3.3
- Ubuntu 19.10
- nfs-common – 1:1.3.4-2.5ubuntu2.1
- Ubuntu 18.04 LTS
- nfs-common – 1:1.3.4-2.1ubuntu5.3
- Ubuntu 16.04 LTS
- nfs-common – 1:1.2.8-9ubuntu12.3
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-4400-1: nfs-utils vulnerability
