qSnapper vulnerabilities

Incorrect caching of authentication between different users in the qSnapper dbus service before version 1.3.3 allows any local attacker to use dbus functions after a privileged user has authenticated.

In qSnapper before version 1.3.3, incorrect caching of authentication between different polkit methods allowed a local attacker to use functions like 'restore from snapshot' even if only allowed to do 'delete snapshot'.

In qSnapper before version 1.3.3, lack of authentication in the "snapshot diff" functions allowed a local attacker to read otherwise read-protected information.

A path traversal vulnerability in qSnapper before version 1.3.3 allows a local attacker to use malicious snapper config files via the "configName" parameter. This can lead to denial of service or potential privilege escalation to root.

A time-to-check-time-of-use vulnerability in the polkit authentication of qSnapper before version 1.3.3 allowed a local attacker to bypass qSnapper's authentication mechanism and operate with root privileges.