CVE-2021-41133 log

Source
Severity High
Remote No
Type Sandbox escape
Description
A security issue has been found in Flatpak before version 1.12.0. An anonymous reporter discovered that 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, 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.
Group Package Affected Fixed Severity Status Ticket
AVG-2455 flatpak 1.11.3-1 1.12.0-1 High Fixed
References
https://github.com/flatpak/flatpak/security/advisories/GHSA-67h7-w3jq-vh4q
https://github.com/flatpak/flatpak/commit/e26ac7586c392b5eb35ff4609fe232c52523b2cf
https://github.com/flatpak/flatpak/commit/89ae9fe74c6d445bb1b3a40e568d77cf5de47e48
https://github.com/flatpak/flatpak/commit/26b12484eb8a6219b9e7aa287b298a894b2f34ca
https://github.com/flatpak/flatpak/commit/a10f52a7565c549612c92b8e736a6698a53db330
https://github.com/flatpak/flatpak/commit/9766ee05b1425db397d2cf23afd24c7f6146a69f
https://github.com/flatpak/flatpak/commit/4c34815784e9ffda5733225c7d95824f96375e36
https://github.com/flatpak/flatpak/commit/1330662f33a55e88bfe18e76de28b7922d91a999
https://github.com/flatpak/flatpak/commit/462fca2c666e0cd2b60d6d2593a7216a83047aaf