CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 1CVE-2023-43090 – Gnome-shell: screenshot tool allows viewing open windows when session is locked
https://notcve.org/view.php?id=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. Se encontró una vulnerabilidad en GNOME Shell. La pantalla de bloqueo de GNOME Shell permite a un usuario local no autenticado ver ventanas de la sesión de escritorio bloqueada mediante el uso de atajos de teclado para desbloquear la funcionalidad restringida de la herramienta de captura de pantalla. • https://access.redhat.com/security/cve/CVE-2023-43090 https://bugzilla.redhat.com/show_bug.cgi?id=2239087 https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6990 https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2944 • CWE-862: Missing Authorization •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-3982
https://notcve.org/view.php?id=CVE-2021-3982
Linux distributions using CAP_SYS_NICE for gnome-shell may be exposed to a privilege escalation issue. An attacker, with low privilege permissions, may take advantage of the way CAP_SYS_NICE is currently implemented and eventually load code to increase its process scheduler priority leading to possible DoS of other services running in the same machine. Las distribuciones de Linux que usan la función CAP_SYS_NICE para gnome-shell pueden estar expuestas a un problema de escalada de privilegios. Un atacante, con permisos de bajo privilegio, puede aprovechar la forma en que CAP_SYS_NICE está actualmente implementado y eventualmente cargar código para aumentar su prioridad de programación de procesos conllevando a un posible DoS de otros servicios que son ejecutados en la misma máquina • https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2284 https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2060 • CWE-273: Improper Check for Dropped Privileges •
CVSS: 6.1EPSS: 0%CPEs: 2EXPL: 0CVE-2021-20315
https://notcve.org/view.php?id=CVE-2021-20315
A locking protection bypass flaw was found in some versions of gnome-shell as shipped within CentOS Stream 8, when the "Application menu" or "Window list" GNOME extensions are enabled. This flaw allows a physical attacker who has access to a locked system to kill existing applications and start new ones as the locked user, even if the session is still locked. Se ha encontrado un fallo de omisión de la protección de bloqueo en algunas versiones de gnome-shell tal y como se distribuye en CentOS Stream 8, cuando las extensiones de GNOME "Application menu" o "Window list" están habilitadas. Este fallo permite a un atacante físico que tenga acceso a un sistema bloqueado matar las aplicaciones existentes e iniciar otras nuevas como el usuario bloqueado, incluso si la sesión sigue bloqueada • https://bugzilla.redhat.com/show_bug.cgi?id=2006285 • CWE-667: Improper Locking •
CVSS: 4.3EPSS: 0%CPEs: 4EXPL: 1CVE-2020-17489 – gnome-shell: Password from logged-out user may be shown on login screen
https://notcve.org/view.php?id=CVE-2020-17489
An issue was discovered in certain configurations of GNOME gnome-shell through 3.36.4. When logging out of an account, the password box from the login dialog reappears with the password still visible. If the user had decided to have the password shown in cleartext at login time, it is then visible for a brief moment upon a logout. (If the password were never shown in cleartext, only the password length is revealed.) Se detectó un problema en determinadas configuraciones de GNOME gnome-shell versiones hasta 3.36.4. • http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00028.html https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2997 https://lists.debian.org/debian-lts-announce/2020/09/msg00014.html https://security.gentoo.org/glsa/202009-08 https://usn.ubuntu.com/4464-1 https://access.redhat.com/security/cve/CVE-2020-17489 https://bugzilla.redhat.com/show_bug.cgi?id=1868418 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-522: Insufficiently Protected Credentials •
CVSS: 4.8EPSS: 0%CPEs: 7EXPL: 1CVE-2019-3820 – gnome-shell: partial lock screen bypass
https://notcve.org/view.php?id=CVE-2019-3820
It was discovered that the gnome-shell lock screen since version 3.15.91 did not properly restrict all contextual actions. An attacker with physical access to a locked workstation could invoke certain keyboard shortcuts, and potentially other actions. Se ha descubierto que la pantalla de bloqueo de gnome-shell, desde la versión 3.15.91 no restringió correctamente todas las acciones contextuales. Un atacante con acceso físico a una estación de trabajo bloqueada podría invocar ciertos atajos de teclado y, potencialmente, otras acciones. A vulnerability was found where the gnome-shell lock screen, since version 3.15.91, does not properly restrict all contextual actions. • http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00049.html https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3820 https://gitlab.gnome.org/GNOME/gnome-shell/issues/851 https://usn.ubuntu.com/3966-1 https://access.redhat.com/security/cve/CVE-2019-3820 https://bugzilla.redhat.com/show_bug.cgi?id=1669391 • CWE-285: Improper Authorization CWE-287: Improper Authentication •