Screenshot tool allows viewing open windows when session is locked
CVE-2023-43090

5.5MEDIUM

Key Information:

Vendor

Red Hat
Status
gnome-shell
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
22 September 2023

What is CVE-2023-43090?

A vulnerability was found in GNOME Shell. GNOME Shell's lock screen allows an unauthenticated local user to view windows of the locked desktop session by using keyboard shortcuts to unlock the restricted functionality of the screenshot tool.

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Affected Version(s)

gnome-shell 44.5

gnome-shell 43.9

References

https://access.redhat.com/security/cve/CVE-2023-43090
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2239087
issue-trackingx_refsource_REDHAT
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Mickael Karatekin (SysDream) for reporting this issue.
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