The version of flatpak installed on the remote host is prior to 1.0.9-10. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2076 advisory.

    Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In     versions prior to 1.10.4 and 1.12.0, Flatpak apps with direct access to AF_UNIX sockets such as those used     by Wayland, Pipewire or pipewire-pulse can trick portals and other host-OS services into treating the     Flatpak app as though it was an ordinary, non-sandboxed host-OS process. They can do this by manipulating     the VFS using recent mount-related syscalls that are not blocked by Flatpak's denylist seccomp filter, in     order to substitute a crafted `/.flatpak-info` or make that file disappear entirely. Flatpak apps that act     as clients for AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can escalate the     privileges that the corresponding services will believe the Flatpak app has. Note that protocols that     operate entirely over the D-Bus session bus (user bus), system bus or accessibility bus are not affected     by this. This is due to the use of a proxy process `xdg-dbus-proxy`, whose VFS cannot be manipulated by     the Flatpak app, when interacting with these buses. Patches exist for versions 1.10.4 and 1.12.0, and as     of time of publication, a patch for version 1.8.2 is being planned. There are no workarounds aside from     upgrading to a patched version. (CVE-2021-41133)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Detections

Analytics

Amazon Linux 2 : flatpak (ALAS-2023-2076)

high Nessus Plugin ID 176897

Version 1.1

Version 1.0

Version 1.1 Dec 12, 2024, 9:55 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202412120955
Version 1.0 Jun 8, 2023, 6:28 AM New Plugin Feed: 202306080628