| Name | CVE-2024-32462 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5666-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| flatpak (PTS) | buster, buster (security) | 1.2.5-0+deb10u4 | vulnerable |
| bullseye | 1.10.8-0+deb11u1 | vulnerable | |
| bullseye (security) | 1.10.8-0+deb11u2 | fixed | |
| bookworm | 1.14.4-1 | vulnerable | |
| bookworm (security) | 1.14.4-1+deb12u1 | fixed | |
| trixie | 1.14.6-1~deb13u1 | vulnerable | |
| sid | 1.14.8-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| flatpak | source | bullseye | 1.10.8-0+deb11u2 | DSA-5666-1 | ||
| flatpak | source | bookworm | 1.14.4-1+deb12u1 | DSA-5666-1 | ||
| flatpak | source | (unstable) | 1.14.6-1 |
[buster] - flatpak <ignored> (Minor issue)
https://www.openwall.com/lists/oss-security/2024/04/18/5
https://github.com/flatpak/flatpak/security/advisories/GHSA-phv6-cpc2-2fgj
Fixed by: https://github.com/flatpak/flatpak/commit/bbab7ed1e672356d1a78b422462b210e8e875931 (1.15.8)
Fixed by: https://github.com/flatpak/flatpak/commit/b7c1a558e58aaeb1d007d29529bbb270dc4ff11e (1.14.6)
Fixed by: https://github.com/flatpak/flatpak/commit/81abe2a37d363f5099c3d0bdcd0caad6efc5bf97 (1.12.9)
Fixed by: https://github.com/flatpak/flatpak/commit/72016e3fce8fcbeab707daf4f1a02b931fcc004d (1.10.9)