title: Insecure temporary file use in base-files
description: The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled.
problem types: Insecure Temporary File
affected:
{
product: base-files
vendor: Ubuntu
versions:
lessThan: 10.1ubuntu2.2, status: affected, version: unspecified, versionType: custom
}