USN-7035-1: AppArmor vulnerability

Published Sep 25, 2024
·
Updated

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.

Affected Software

4 affected componentsFixes available
All of the following
ubuntu/apparmor<3.0.4-2ubuntu2.4
3.0.4-2ubuntu2.4
Ubuntu Ubuntu=22.04
All of the following
ubuntu/apparmor<2.13.3-7ubuntu5.4
2.13.3-7ubuntu5.4
Ubuntu Ubuntu=20.04

Event History

Sep 25, 2024
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-7035-1?

The severity of USN-7035-1 is classified as medium due to the potential for local attackers to bypass AppArmor restrictions.

2

How do I fix USN-7035-1?

To fix USN-7035-1, you should upgrade to AppArmor version 3.0.4-2ubuntu2.4 or 2.13.3-7ubuntu5.4 depending on your Ubuntu version.

3

What systems are affected by USN-7035-1?

USN-7035-1 affects Ubuntu 20.04 and 22.04 with the specified versions of the AppArmor package.

4

What could a local attacker do to exploit USN-7035-1?

A local attacker could exploit USN-7035-1 to bypass AppArmor restrictions by performing unauthorized mount operations.

5

Is there a workaround for USN-7035-1?

There is no official workaround for USN-7035-1; the recommended action is to apply the security update.

Contact

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