ALT-PU-2024-6956-2

Package update flatpak in branch p10

Version1.14.6-alt1

Published2024-04-22

Max severityHIGH

Severity:

Closed issues (2)

HIGH8.4

Уязвимость интерфейса xdg-desktop-portal инструмента для управления приложениями и средами Flatpak, позволяющая нарушителю выйти из изолированной программной среды и получить доступ к файлам в базовой системе

Published: 2024-04-19Modified: 2025-10-24

CVSS 3.xHIGH 8.4

CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CVSS 2.0MEDIUM 6.2

CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:N

References

CVE-2024-32462

HIGH8.4

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. in versions before 1.10.9, 1.12.9, 1.14.6, and 1.15.8, a malicious or compromised Flatpak app could execute arbitrary code outside its sandbox. Normally, the `--command` argument of `flatpak run` expects to be given a command to run in the specified Flatpak app, optionally along with some arguments. However it is possible to instead pass `bwrap` arguments to `--command=`, such as `--bind`. It's possible to pass an arbitrary `commandline` to the portal interface `org.freedesktop.portal.Background.RequestBackground` from within a Flatpak app. When this is converted into a `--command` and arguments, it achieves the same effect of passing arguments directly to `bwrap`, and thus can be used for a sandbox escape. The solution is to pass the `--` argument to `bwrap`, which makes it stop processing options. This has been supported since bubblewrap 0.3.0. All supported versions of Flatpak require at least that version of bubblewrap. xdg-desktop-portal version 1.18.4 will mitigate this vulnerability by only allowing Flatpak apps to create .desktop files for commands that do not start with --. The vulnerability is patched in 1.15.8, 1.10.9, 1.12.9, and 1.14.6.

Published: 2024-04-18Modified: 2025-08-21

CVSS 3.xHIGH 8.4

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

References