What is the severity of USN-4077-1?

USN-4077-1 is classified as a privilege escalation vulnerability that could allow local attackers to create arbitrary files.

How do I fix USN-4077-1?

To fix USN-4077-1, update tmpreaper to the fixed versions: 1.6.13+nmu1+deb9u1build0.18.04.1 for Ubuntu 18.04 or 1.6.13+nmu1+deb9u1build0.16.04.1 for Ubuntu 16.04.

Can USN-4077-1 affect my system?

Yes, USN-4077-1 can affect systems running the vulnerable versions of tmpreaper on Ubuntu 16.04 or 18.04.

Who is affected by USN-4077-1?

USN-4077-1 affects users of the tmpreaper package on Ubuntu Linux versions 16.04 and 18.04.

What actions should I take regarding USN-4077-1?

It is recommended to immediately update your tmpreaper package to mitigate the risk associated with USN-4077-1.

Vulnerability/
USN-4077-1

29/7/2019

USN-4077-1: tmpreaper vulnerability

First published: Mon Jul 29 2019(Updated: )

It was discovered that tmpreaper incorrectly handled certain mount operations. A local attacker could possibly use this issue to create arbitrary files, leading to privilege escalation.

Affected Software	Affected Version	How to fix
All of
ubuntu/tmpreaper	<1.6.13+nmu1+deb9u1build0.18.04.1	1.6.13+nmu1+deb9u1build0.18.04.1
Ubuntu OpenSSH Client	=18.04
All of
ubuntu/tmpreaper	<1.6.13+nmu1+deb9u1build0.16.04.1	1.6.13+nmu1+deb9u1build0.16.04.1
Ubuntu OpenSSH Client	=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2019-3461

Frequently Asked Questions

What is the severity of USN-4077-1?
USN-4077-1 is classified as a privilege escalation vulnerability that could allow local attackers to create arbitrary files.
How do I fix USN-4077-1?
To fix USN-4077-1, update tmpreaper to the fixed versions: 1.6.13+nmu1+deb9u1build0.18.04.1 for Ubuntu 18.04 or 1.6.13+nmu1+deb9u1build0.16.04.1 for Ubuntu 16.04.
Can USN-4077-1 affect my system?
Yes, USN-4077-1 can affect systems running the vulnerable versions of tmpreaper on Ubuntu 16.04 or 18.04.
Who is affected by USN-4077-1?
USN-4077-1 affects users of the tmpreaper package on Ubuntu Linux versions 16.04 and 18.04.
What actions should I take regarding USN-4077-1?
It is recommended to immediately update your tmpreaper package to mitigate the risk associated with USN-4077-1.

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