Debian update for gnome-shell

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU81043

Risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-43090

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

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

Update gnome-shell package to version 43.6-1~deb12u2.

Vulnerable software versions

Debian Linux: All versions

gnome-shell (Debian package): before 43.6-1~deb12u2

CPE2.3

• cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
• cpe:2.3:a:debian:gnome-shell_debian_package:*:*:*:*:*:debian_linux:*:*

External links

https://www.debian.org/security/2023/dsa-5501

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.