Activity log for bug #1677924

Date Who What changed Old value New value Message
2017-03-31 00:17:17 Tyler Hicks bug added bug
2017-03-31 00:17:42 Tyler Hicks bug task added lightdm
2017-03-31 00:17:49 Tyler Hicks lightdm: status New Confirmed
2017-03-31 00:21:13 Tyler Hicks attachment added 0001-Detect-existing-malicious-guest-user-home-dirs.patch https://bugs.launchpad.net/lightdm/+bug/1677924/+attachment/4850930/+files/0001-Detect-existing-malicious-guest-user-home-dirs.patch
2017-03-31 01:46:06 Robert Ancell bug added subscriber Robert Ancell
2017-03-31 01:53:58 Robert Ancell lightdm: importance Undecided Critical
2017-03-31 01:54:00 Robert Ancell lightdm: status Confirmed Triaged
2017-03-31 01:55:26 Robert Ancell nominated for series lightdm/1.18
2017-03-31 01:55:26 Robert Ancell bug task added lightdm/1.18
2017-03-31 01:55:26 Robert Ancell nominated for series lightdm/1.20
2017-03-31 01:55:26 Robert Ancell bug task added lightdm/1.20
2017-03-31 01:55:26 Robert Ancell nominated for series lightdm/1.22
2017-03-31 01:55:26 Robert Ancell bug task added lightdm/1.22
2017-03-31 01:55:33 Robert Ancell lightdm/1.18: status New Triaged
2017-03-31 01:55:36 Robert Ancell lightdm/1.20: status New Triaged
2017-03-31 01:55:37 Robert Ancell lightdm/1.22: status New Triaged
2017-03-31 01:55:39 Robert Ancell lightdm/1.22: importance Undecided Critical
2017-03-31 01:55:40 Robert Ancell lightdm/1.20: importance Undecided Critical
2017-03-31 01:56:01 Robert Ancell lightdm/1.18: importance Undecided Critical
2017-03-31 01:56:31 Robert Ancell nominated for series Ubuntu Zesty
2017-03-31 01:56:31 Robert Ancell bug task added lightdm (Ubuntu Zesty)
2017-03-31 01:56:31 Robert Ancell nominated for series Ubuntu Xenial
2017-03-31 01:56:31 Robert Ancell bug task added lightdm (Ubuntu Xenial)
2017-03-31 01:56:31 Robert Ancell nominated for series Ubuntu Yakkety
2017-03-31 01:56:31 Robert Ancell bug task added lightdm (Ubuntu Yakkety)
2017-03-31 01:57:21 Robert Ancell lightdm (Ubuntu Yakkety): status New Triaged
2017-03-31 01:57:24 Robert Ancell lightdm (Ubuntu Zesty): status Confirmed Triaged
2017-03-31 01:57:26 Robert Ancell lightdm (Ubuntu Xenial): status New Triaged
2017-03-31 01:57:28 Robert Ancell lightdm (Ubuntu Yakkety): importance Undecided Critical
2017-03-31 01:57:30 Robert Ancell lightdm (Ubuntu Xenial): importance Undecided Critical
2017-03-31 02:06:19 Tyler Hicks cve linked 2017-7358
2017-04-03 14:24:20 Tyler Hicks bug added subscriber Noam Rathaus
2017-04-04 20:43:23 Tyler Hicks description Maor Schwartz discovered that a local attacker could watch for lightdm's guest-account script to create a /tmp/guest-XXXXXX file and then quickly create the lowercase representation of the guest user's home directory before lightdm could. This allowed the attacker to have control of the guest user's home directory and, subsequently, gain control of an arbitrary directory in the filesystem which could lead to privilege escalation. It was discovered that a local attacker could watch for lightdm's guest-account script to create a /tmp/guest-XXXXXX file and then quickly create the lowercase representation of the guest user's home directory before lightdm could. This allowed the attacker to have control of the guest user's home directory and, subsequently, gain control of an arbitrary directory in the filesystem which could lead to privilege escalation.
2017-04-04 20:45:03 Tyler Hicks attachment removed 0001-Detect-existing-malicious-guest-user-home-dirs.patch https://bugs.launchpad.net/lightdm/+bug/1677924/+attachment/4850930/+files/0001-Detect-existing-malicious-guest-user-home-dirs.patch
2017-04-04 20:49:09 Tyler Hicks attachment added 0001-Detect-existing-malicious-guest-user-home-dirs.patch https://bugs.launchpad.net/lightdm/+bug/1677924/+attachment/4854776/+files/0001-Detect-existing-malicious-guest-user-home-dirs.patch
2017-04-04 21:02:50 Launchpad Janitor lightdm (Ubuntu Yakkety): status Triaged Fix Released
2017-04-04 21:02:52 Launchpad Janitor lightdm (Ubuntu Xenial): status Triaged Fix Released
2017-04-04 21:04:30 Tyler Hicks information type Private Security Public Security
2017-04-04 21:04:47 Tyler Hicks lightdm (Ubuntu Xenial): assignee Tyler Hicks (tyhicks)
2017-04-04 21:04:48 Tyler Hicks lightdm (Ubuntu Yakkety): assignee Tyler Hicks (tyhicks)
2017-04-04 21:05:02 Tyler Hicks lightdm (Ubuntu Zesty): assignee Robert Ancell (robert-ancell)
2017-04-04 21:24:48 Robert Ancell lightdm: status Triaged Fix Committed
2017-04-04 21:24:53 Robert Ancell lightdm: status Fix Committed Fix Released
2017-04-04 21:25:01 Launchpad Janitor branch linked lp:lightdm
2017-04-04 21:26:26 Robert Ancell lightdm/1.22: status Triaged Fix Released
2017-04-04 21:26:41 Launchpad Janitor branch linked lp:lightdm/1.22
2017-04-04 21:27:34 Robert Ancell lightdm/1.20: status Triaged Fix Released
2017-04-04 21:27:43 Launchpad Janitor branch linked lp:lightdm/1.20
2017-04-04 21:28:41 Robert Ancell lightdm/1.18: status Triaged Fix Released
2017-04-04 21:28:52 Launchpad Janitor branch linked lp:lightdm/1.18
2017-04-05 00:26:37 Ubuntu Foundations Team Bug Bot tags patch
2017-04-05 13:04:40 Launchpad Janitor lightdm (Ubuntu Zesty): status Triaged Fix Released
2017-08-18 11:39:04 sudodus bug added subscriber sudodus