@Sebastien, yes, I asked people from the security team to sponsor it but we are still reviewing the snap_browsers abstraction. We are denying access to /run/user/[0-9]*/gdm/Xauthority in the policy but if that was the case, then the browser should not have been able to open, but it does open so we are investigating if there's an issue.
Regarding the evince debdiff, even though it looks like the dependency is on Build-Depends on the debdiff, it is actually under Depends. If we don't set this dependency, then the snap_browsers abstraction might not be available. So if the new evince is installed with an old apparmor, then the evince apparmor policy will fail to load and evince will run unconfined. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apparmor in Ubuntu. https://bugs.launchpad.net/bugs/1794064 Title: Clicking a hyperlink in a PDF fails to open it if the default browser is a snap Status in apparmor package in Ubuntu: Confirmed Status in evince package in Ubuntu: Triaged Status in apparmor source package in Jammy: New Status in evince source package in Jammy: New Status in evince package in Debian: New Bug description: [Impact] * Users cannot open a hyperlink in a PDF opened with evince when the default browser is a snap. * The fix creates a snap_browsers abstraction on AppArmor which can be used in a transition for when the browser is executed. The snap_browsers abstraction provides the minimal amount of permissions required to execute a browser provided through snaps. This is a workaround since AppArmor currently does not provide mediation/filtering on enhanced environment variables. [Test Plan] * Make sure the default browser is provided through the snap store. * Open a PDF that contains a hyperlink using evince and click on the URL. * The browser should open the requested URL. [Where problems could occur] * If the browser or snap core update to have new requirements for opening a browser, then the current policy could become obsolete and will need to be updated again. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1794064/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
