*** This bug is a security vulnerability ***
Public security bug reported:
KDE Project Security Advisory
=============================
Title: Plasma Desktop: Arbitrary command execution in the removable
device notifier
Risk Rating: High
CVE: CVE-2018-6791
Versions: Plasma < 5.12.0
Date: 8 February 2018
Overview
========
When a vfat thumbdrive which contains `` or $() in its volume label is plugged
and mounted trough the device notifier, it's interpreted as a shell command,
leaving a possibility of arbitrary commands execution. an example of offending
volume label is "$(touch b)" which will create a file called b in the
home folder.
Workaround
==========
Mount removable devices with Dolphin instead of the device notifier.
Solution
========
Update to Plasma >= 5.12.0 or Plasma >= 5.8.9
Or apply the following patches:
Plasma 5.8:
https://commits.kde.org/plasma-workspace/9db872df82c258315c6ebad800af59e81ffb9212
Plasma 5.9/5.10/5.11:
https://commits.kde.org/plasma-workspace/f32002ce50edc3891f1fa41173132c820b917d57
Credits
=======
Thanks to ksieluzyckih for the report and to Marco Martin for the fix.
Patches for this bug should also contain fixes for CVE-2018-6790:
KDE Project Security Advisory
=============================
Title: Plasma: Notifications can expose user IP address
Risk Rating: Low
CVE: CVE-2018-6790
Versions: Plasma < 5.12.0
Date: 8 February 2018
Overview
========
Plasma has support for the Desktop Nofications specification. That
specification allows
embedding images in notifications. Plasma was not sanitizing the HTML that
forms the notification.
That allowed for notifications to load a remote image leaking the user IP
address. This is in turn
made a bit worse by the fact that some chat software doesn't sanitize the text
they send to the
notification system either meaning that a third party could send a carefully
crafted message
to a chat room and get the IP addresses of the users in that chat room.
Workaround
==========
Disable notifications
Solution
========
Update to Plasma >= 5.12.0 or Plasma >= 5.8.9
Or apply the following patches:
Plasma 5.8:
https://cgit.kde.org/plasma-workspace.git/commit/?h=Plasma/5.8&id=5bc696b5abcdb460c1017592e80b2d7f6ed3107c
Credits
=======
Thanks to David Edmundson for the fix.
** Affects: kde-runtime (Ubuntu)
Importance: High
Assignee: Rik Mills (rikmills)
Status: New
** Affects: plasma-workspace (Ubuntu)
Importance: High
Assignee: Rik Mills (rikmills)
Status: Fix Released
** Affects: kde-runtime (Ubuntu Trusty)
Importance: High
Assignee: Simon Quigley (tsimonq2)
Status: In Progress
** Affects: plasma-workspace (Ubuntu Trusty)
Importance: High
Assignee: Simon Quigley (tsimonq2)
Status: In Progress
** Affects: kde-runtime (Ubuntu Xenial)
Importance: High
Assignee: Simon Quigley (tsimonq2)
Status: In Progress
** Affects: plasma-workspace (Ubuntu Xenial)
Importance: High
Assignee: Simon Quigley (tsimonq2)
Status: In Progress
** Affects: kde-runtime (Ubuntu Artful)
Importance: High
Assignee: Simon Quigley (tsimonq2)
Status: In Progress
** Affects: plasma-workspace (Ubuntu Artful)
Importance: High
Assignee: Simon Quigley (tsimonq2)
Status: In Progress
** Affects: kde-runtime (Ubuntu Bionic)
Importance: High
Assignee: Rik Mills (rikmills)
Status: New
** Affects: plasma-workspace (Ubuntu Bionic)
Importance: High
Assignee: Rik Mills (rikmills)
Status: Fix Released
** Also affects: plasma-workspace (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: plasma-workspace (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: plasma-workspace (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: plasma-workspace (Ubuntu Artful)
Importance: Undecided
Status: New
** Also affects: kde-runtime (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1748247
Title:
[CVE] Arbitrary command execution in the removable device notifier
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