1. Ubuntu Security Notices
  2. USN-4077-1

USN-4077-1: tmpreaper vulnerability

Publication date

29 July 2019

Overview

tmpreaper could be made to overwrite files as the administrator.

Releases

Packages

  • tmpreaper - cleans up files in directories based on their age

Details

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.

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.

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
18.04 bionic tmpreaper –  1.6.13+nmu1+deb9u1build0.18.04.1
16.04 xenial tmpreaper –  1.6.13+nmu1+deb9u1build0.16.04.1

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References

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