Unity lockscreen lets applications capture keyboard input
Bug #1348668 reported by
Eddie Dunn
This bug report is a duplicate of:
Bug #1349128: Ubuntu 14.04 lock screen doesn't accept keyboard input and sends it back to the underlying window (until using indicators).
Edit
Remove
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Unity |
New
|
Undecided
|
Unassigned | ||
unity (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
I noticed that with the Vimium extension activated in Google Chrome, I cannot unlock Unity's lockscreen because keyboard input is hijacked by Vimium. The lockscreen really should not let this happen, and it can even be considered a potential security vulnerability as it might allow applications to capture a user's password.
I have noticed this before as well when using another application, though I can't remember which one it was at the moment.
The workaround is to use the mouse to choose the Switch user-option, but this is really not obvious to anyone who might encounter this bug.
information type: | Private Security → Public |
To post a comment you must log in.
I have discovered that Dell has published a package here[1] which contains a deb package `workaround- screen- lock-malfunctio n_1_all. deb` that seemingly fixes this issue. Whether this is still a valid bug for the Unity lockscreen is difficult for me to say, but I will leave it as is, until someone more knowledgeable takes a look at it.
I was running a vanilla verison of 14.04 on the Dell XPS9333, with no special Dell packages installed when experiencing the lockscreen issue.
[1]: http:// www.dell. com/support/ drivers/ us/en/04/ DriverDetails/ Product/ xps-13- 9333?driverId= 4NTWR