Arch Linux

Please read this before reporting a bug:
https://wiki.archlinux.org/index.php/Reporting_Bug_Guidelines

Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.

REPEAT: Do NOT report bugs for outdated packages!
Tasklist

FS#69338 - [caribou] [cinnamon-screensaver] Screensaver lock bypass via the virtual keyboard

Attached to Project: Arch Linux
Opened by Eli Schwartz (eschwartz) - Friday, 15 January 2021, 19:22 GMT
Last edited by Jan Alexander Steffens (heftig) - Saturday, 16 January 2021, 22:56 GMT
Task Type Bug Report
Category Security
Status Closed
Assigned To Jan de Groot (JGC)
Jan Alexander Steffens (heftig)
Levente Polyak (anthraxx)
Architecture All
Severity Critical
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

https://github.com/linuxmint/cinnamon-screensaver/issues/354

Pressing a certain key in caribou's on-screen keyboard can crash caribou on versions of xorg-server containing the fix for CVE-2020-25712.

https://gitlab.freedesktop.org/xorg/xserver/-/commit/87c64fc5b0db9f62f4e361444f4b60501ebf67b9

Cinnamon uses caribou's on-screen keyboard in the lock screen, and crashing caribou crashes the lock screen, thus bypassing the password prompt and granting arbitrary physical access to unattended login sessions.

The cinnamon developers have submitted a MR to caribou which fixes the crash: https://gitlab.gnome.org/GNOME/caribou/-/merge_requests/3

No CVE has been assigned yet, I think.
This task depends upon

Closed by  Jan Alexander Steffens (heftig)
Saturday, 16 January 2021, 22:56 GMT
Reason for closing:  Fixed
Additional comments about closing:  caribou 0.4.21+66+g14f5428-3

Loading...