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USN-7035-1: AppArmor vulnerability

25 September 2024

AppArmor restrictions could be bypassed for rules allowing mount operations

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Releases

Packages

Details

It was discovered that the AppArmor policy compiler incorrectly generated
looser restrictions than expected for rules allowing mount operations. A
local attacker could possibly use this to bypass AppArmor restrictions in
applications where some mount operations were permitted.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04
Ubuntu 20.04

In general, a standard system update will make all the necessary changes.
After this update, applications confined by policies with mount operations
restrictions may need to have the rules updated.