| Name | CVE-2018-20681 |
| Description | mate-screensaver before 1.20.2 in MATE Desktop Environment allows physically proximate attackers to view screen content and possibly control applications. By unplugging and re-plugging or power-cycling external output devices (such as additionally attached graphical outputs via HDMI, VGA, DVI, etc.) the content of a screensaver-locked session can be revealed. In some scenarios, the attacker can execute applications, such as by clicking with a mouse. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| mate-screensaver (PTS) | buster | 1.20.3-3 | fixed |
| bullseye | 1.24.1-1 | fixed | |
| bookworm | 1.26.1-1+deb12u1 | fixed | |
| trixie, sid | 1.26.2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| mate-screensaver | source | jessie | (not affected) | |||
| mate-screensaver | source | (unstable) | 1.20.2-1 | low |
[stretch] - mate-screensaver <no-dsa> (Minor issue)
[jessie] - mate-screensaver <not-affected> (Vulnerability only manifests when built against GTK-3.22)
https://github.com/mate-desktop/mate-screensaver/issues/152
https://github.com/mate-desktop/mate-screensaver/issues/155
https://github.com/mate-desktop/mate-screensaver/issues/170
https://github.com/mate-desktop/mate-screensaver/pull/167