No .ICEauthority file at all in i686 trusty's Kubuntu 14.04.1, Lubuntu 14.04, 14.04.1, and in amd64 Kubuntu 14.04.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu |
Expired
|
Undecided
|
Unassigned |
Bug Description
No .ICEauthority file at all
in i686 trusty's Kubuntu 14.04.1, Lubuntu 14.04 and 14.04.1,
nor in amd64 Kubuntu 14.04.
I detected four cases in installed trusties : there is no .ICEauthority in /home/main_user. Nevertheless users can log in. You can see the phenomenon as soon as the live usb has been burned. You don't even need to install.
I already could reproduce it for
Lubuntu-
==============
First case (first user) :
Lubuntu iso unknown,
burned with lili usb creator.
lsb_release -d Description:
(L)Ubuntu 14.04.1 LTS
uname -r Linux XXXX 3.13.0-33-generic
cat /proc/cpuinfo
dual core processor: Intel Atom N270
Second case (same user) :
other iso but same user and same hardware as above.
Lubuntu-
burned with lili usb creator.
With updates, according to the kernel.
uname -a Linux XXXX 3.13.0-33-generic #58-Ubuntu SMP Tue Jul 29 16:47:17 UTC 2014 i686 i686 i686 GNU/Linux
Third case; second user :
Kubuntu iso unknown.
lsb_release -d Description: (K)Ubuntu 14.04.1 LTS
uname -a Linux YYYY 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:12 UTC 2014
Processor: AMD Athlon II X2 250
==============
Fourth case; third user (me)
Kubuntu-
From cdimage.
Beginning with :
amd64 AMD Athlon dual core 5050e
and using a persistent live lsb_release -d Description: (X)Ubuntu 14.04 LTS
kernel 3.13.0-24-generic (...) i686,
I took again my micro-SD card and washed it up with
sudo dd if=/dev/zero of=/dev/sdf bs=512 count=4096
Then created, using gparted, a msdos partitions table.
Then i tried to burn it with persistency, using usb-creator-gtk 0.2.23, of my persistent live Xubuntu 14.04 : FAILURE
Using gparted, i created a new fat32 partition, aligned on cylinders.
New try to burn, without persistency : ok
Plugged to another pc, with
Intel core 2duo P8600 :
NO .ICEauthority again.
==============
I (third user) had reproduced the second case with this process :
I took a micro-SD card and washed it up with
sudo dd if=/dev/zero of=/dev/sdx bs=512 count=4000
Then i burned it with usb-creator-gtk 0.2.23, of a Xubuntu 12.04.5
(uname -a
Linux ZZZZ 3.2.0-67-generic #101-Ubuntu SMP Tue Jul 15 17:45:51 UTC 2014 i686 i686 i386 GNU/Linux)
and an Intel Atom N270 processor.
Then I plugged it in another pc, with an amd64 AMD Athlon dual core processor 5050e.
And so it was : no .ICEauthority, but i could boot and reboot the live session.
===============
More details (dpkg --get-selections, cat .bash_history and so on)
on http://
information type: | Private Security → Public Security |
description: | updated |
description: | updated |
summary: |
No .ICEauthority file at all in x686 trusty's Kubuntu 14.04.1, Lubuntu - 14.04 and 14.04.1. More details on http://forum.ubuntu- - fr.org/viewtopic.php?pid=17711471#p17711471 (for french speaking). + 14.04 and 14.04.1. |
description: | updated |
description: | updated |
description: | updated |
summary: |
- No .ICEauthority file at all in x686 trusty's Kubuntu 14.04.1, Lubuntu - 14.04 and 14.04.1. + No .ICEauthority file at all in i686 trusty's Kubuntu 14.04.1, Lubuntu + 14.04, 14.04.1, and in amd64 Kubuntu 14.04. |
description: | updated |
description: | updated |
affects: | ubuntudeveloperportal → ubuntu |
Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.