tmpreaper could be made to overwrite files as the administrator.
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.
29 July 2019
A security issue affects these releases of Ubuntu and its derivatives:
tmpreaper could be made to overwrite files as the administrator.
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.
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon