Upstream information
Description
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.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
National Vulnerability Database | |
---|---|
Base Score | 4.6 |
Vector | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Access Vector | Local |
Access Complexity | Low |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 7.8 | 8.8 |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Access Vector | Local | Local |
Access Complexity | Low | Low |
Privileges Required | Low | Low |
User Interaction | None | None |
Scope | Unchanged | Changed |
Confidentiality Impact | High | High |
Integrity Impact | High | High |
Availability Impact | High | High |
CVSSv3 Version | 3.1 | 3.1 |
- SUSE-SU-2021:3472-1, published Wed Oct 20 10:24:16 UTC 2021
- openSUSE-SU-2021:1400-1, published Sun Oct 31 21:49:57 2021
- openSUSE-SU-2021:3472-1, published Wed Oct 20 12:42:07 2021
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
SUSE Linux Enterprise Desktop 15 SP2 SUSE Linux Enterprise High Performance Computing 15 SP2 SUSE Linux Enterprise Module for Desktop Applications 15 SP2 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Storage 7 SUSE Manager Proxy 4.1 SUSE Manager Retail Branch Server 4.1 SUSE Manager Server 4.1 |
| Patchnames: SUSE-SLE-Module-Desktop-Applications-15-SP2-2021-3472 |
SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Module for Desktop Applications 15 SP3 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Storage 7.1 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2 |
| Patchnames: SUSE-SLE-Module-Desktop-Applications-15-SP3-2021-3472 |
SUSE Linux Enterprise Desktop 15 SP4 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Module for Desktop Applications 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 |
| Patchnames: SUSE Linux Enterprise Module for Desktop Applications 15 SP4 GA flatpak-1.12.5-150400.1.11 |
openSUSE Leap 15.2 |
| Patchnames: openSUSE-2021-1400 |
openSUSE Leap 15.3 |
| Patchnames: openSUSE-SLE-15.3-2021-3472 |
openSUSE Leap 15.4 |
| Patchnames: openSUSE Leap 15.4 GA flatpak-1.12.5-150400.1.11 |
openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA flatpak-1.12.1-1.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.
Product(s) | Source package | State |
---|---|---|
SUSE CaaS Platform 4.0 | flatpak | Affected |
SUSE CaaS Platform 4.5 | flatpak | Released |
SUSE Enterprise Storage 6 | flatpak | Affected |
SUSE Enterprise Storage 7 | flatpak | Released |
SUSE Linux Enterprise Desktop 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Desktop 15 SP3 | flatpak | Released |
SUSE Linux Enterprise Desktop 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 LTSS | flatpak | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS | flatpak | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS | flatpak | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2 | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15 SP3 | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise Module for Desktop Applications 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Module for Desktop Applications 15 SP3 | flatpak | Released |
SUSE Linux Enterprise Module for Desktop Applications 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise Real Time 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Server 15 ESPOS | flatpak | Affected |
SUSE Linux Enterprise Server 15 LTSS | flatpak | Affected |
SUSE Linux Enterprise Server 15 SP1 LTSS | flatpak | Affected |
SUSE Linux Enterprise Server 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Server 15 SP2 LTSS | flatpak | Released |
SUSE Linux Enterprise Server 15 SP3 | flatpak | Released |
SUSE Linux Enterprise Server 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | flatpak | Affected |
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Server for SAP Applications 15 | flatpak | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | flatpak | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | flatpak | Released |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise Storage 7 | flatpak | Released |
SUSE Linux Enterprise Storage 7.1 | flatpak | Released |
SUSE Manager Proxy 4.1 | flatpak | Released |
SUSE Manager Proxy 4.2 | flatpak | Released |
SUSE Manager Proxy 4.3 | flatpak | Already fixed |
SUSE Manager Retail Branch Server 4.1 | flatpak | Released |
SUSE Manager Retail Branch Server 4.2 | flatpak | Released |
SUSE Manager Retail Branch Server 4.3 | flatpak | Already fixed |
SUSE Manager Server 4.1 | flatpak | Released |
SUSE Manager Server 4.2 | flatpak | Released |
SUSE Manager Server 4.3 | flatpak | Already fixed |