Kate and Kwrite create a backup file before saving a modified file. These backup files were created with default permissions, even if the original file had more strict permissions set, so that other local users could possibly read the backup file even if they are not permitted to read the original file.
The problem can be corrected by updating your system to the following package versions:
21 July 2005
A security issue affects these releases of Ubuntu and its derivatives:
Kate and Kwrite create a backup file before saving a modified file. These backup files were created with default permissions, even if the original file had more strict permissions set, so that other local users could possibly read the backup file even if they are not permitted to read the original file.
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.
Vulmon