Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-8288

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
27/04/2017
Last modified:
20/04/2025

Description

gnome-shell 3.22 through 3.24.1 mishandles extensions that fail to reload, which can lead to leaving extensions enabled in the lock screen. With these extensions, a bystander could launch applications (but not interact with them), see information from the extensions (e.g., what applications you have opened or what music you were playing), or even execute arbitrary commands. It all depends on what extensions a user has enabled. The problem is caused by lack of exception handling in js/ui/extensionSystem.js.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.10
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:gnome:gnome-shell:3.22.0:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.22.1:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.22.2:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.22.3:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.23.1:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.23.2:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.23.3:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.23.90:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.23.91:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.23.92:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.24.0:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gnome-shell:3.24.1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools