
CVE-2019-8308 – flatpak: potential /proc based sandbox escape
https://notcve.org/view.php?id=CVE-2019-8308
12 Feb 2019 — Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file. Flatpak, en versiones anteriores a la 1.0.7 y en versiones 1.1.x y 1.2.x anteriores a la 1.2.3, expone /proc en el sandbox de script apply_extra, lo que permite que los atacantes modifiquen un archivo ejecutable del lado del host. A flaw was found in flatpak. In certain special cases, installing flatpak applications and runtimes system-wide ma... • http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html • CWE-668: Exposure of Resource to Wrong Sphere CWE-672: Operation on a Resource after Expiration or Release •

CVE-2018-6560 – flatpak: sandbox escape in D-Bus filtering by a crafted authentication handshake
https://notcve.org/view.php?id=CVE-2018-6560
02 Feb 2018 — In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon. En dbus-proxy/flatpak-proxy.c en Flatpak en versiones anteriores a la 0.8.9, 0.9.x y 0.10.x anteriores a la 0.10.3, se pueden utilizar mensajes D-Bus manipulados para salir del sandbox, ya que la gestión de los espacios en blanco en el proxy no es i... • https://access.redhat.com/errata/RHSA-2018:2766 • CWE-270: Privilege Context Switching Error CWE-436: Interpretation Conflict •

CVE-2017-9780
https://notcve.org/view.php?id=CVE-2017-9780
21 Jun 2017 — In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate permissions, for example setuid or world-writable. The files are deployed with those permissions, which would let a local attacker run the setuid executable or write to the world-writable location. In the case of the "system helper" component, files deployed as part of the app are owned by root, so in the worst case they could be setuid root. En Flatpak, en versiones anteriores a la 0.8.7... • http://www.debian.org/security/2017/dsa-3895 • CWE-732: Incorrect Permission Assignment for Critical Resource •