Vulnerability identifier: #VU81043

Vulnerability risk: Low

CVSSv3.1: 2.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-43090

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
gnome-shell
Client/Desktop applications / Software for system administration

Vendor: Gnome Development Team

Description

The vulnerability allows an attacker to gain access to sensitive information.

The vulnerability exists due to certain key combinations remain active when the user session is locked. An attacker with physical access to device can activate the "single window mode" and "video" buttons in GNOME Screenshot utility by pressing twice the "V" then once the "W" key and record screen or make screenshots.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

gnome-shell: 44.0 - 44.4, 43.0 - 43.8

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External links
http://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1052067
http://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2944

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.