Auth bypass in GNOME Gnome-Shell
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- GNOME Gnome-Shell — versions 42
- Fedoraproject Fedora — versions 37, 38
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2023-43090 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990 (Exploit, Patch, Issue Tracking, Vendor Advisory)
- gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2944 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-43090?
- CVE-2023-43090 is a medium-severity vulnerability in GNOME Gnome-Shell, classified under Missing Authorization. CVSS score: 5.5/10. Published 2023-09-22.
- How severe is CVE-2023-43090?
- Medium severity. CVSS v3 base score is 5.5 out of 10.