CVSS: 8.2EPSS: 0%CPEs: 11EXPL: 0CVE-2019-8308 – flatpak: potential /proc based sandbox escape
https://notcve.org/view.php?id=CVE-2019-8308
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 may allow an attacker to escape the flatpak sandbox. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. • http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00088.html https://access.redhat.com/errata/RHSA-2019:0375 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922059 https://github.com/flatpak/flatpak/releases/tag/1.0.7 https://github.com/flatpak/flatpak/releases/tag/1.2.3 https://access.redhat.com/security/cve/CVE-2019-8308 https://bugzilla.redhat.com/show_bug.cgi?id=1675070 • CWE-668: Exposure of Resource to Wrong Sphere CWE-672: Operation on a Resource after Expiration or Release •
CVSS: 8.8EPSS: 0%CPEs: 10EXPL: 0CVE-2018-6560 – flatpak: sandbox escape in D-Bus filtering by a crafted authentication handshake
https://notcve.org/view.php?id=CVE-2018-6560
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 idéntica a cómo gestiona el demonio los espacios en blanco. It was found that flatpak's D-Bus proxy did not properly filter the access to D-Bus during the authentication protocol. A specially crafted flatpak application could use this flaw to bypass all restrictions imposed by flatpak and have full access to the D-BUS interface. • https://access.redhat.com/errata/RHSA-2018:2766 https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6 https://github.com/flatpak/flatpak/releases/tag/0.10.3 https://github.com/flatpak/flatpak/releases/tag/0.8.9 https://access.redhat.com/security/cve/CVE-2018-6560 https://bugzilla.redhat.com/show_bug.cgi?id=1542207 • CWE-270: Privilege Context Switching Error CWE-436: Interpretation Conflict •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2017-9780
https://notcve.org/view.php?id=CVE-2017-9780
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, un repositorio de aplicaciones de terceros podría incluir aplicaciones maliciosas que contienen archivos con permisos inadecuados, por ejemplo, setuid o world-writable. Los archivos se despliegan con estos permisos que permitirían que un atacante local abra el ejecutable setuid o escriba en la ubicación modificable por cualquier usuario. • http://www.debian.org/security/2017/dsa-3895 http://www.securityfocus.com/bid/99346 https://bugs.debian.org/865413 https://github.com/flatpak/flatpak/issues/845 • CWE-732: Incorrect Permission Assignment for Critical Resource •