Upstream information
Description
Flatpak is a Linux application sandboxing and distribution framework. Prior to versions 1.12.3 and 1.10.6, Flatpak doesn't properly validate that the permissions displayed to the user for an app at install time match the actual permissions granted to the app at runtime, in the case that there's a null byte in the metadata file of an app. Therefore apps can grant themselves permissions without the consent of the user. Flatpak shows permissions to the user during install by reading them from the "xa.metadata" key in the commit metadata. This cannot contain a null terminator, because it is an untrusted GVariant. Flatpak compares these permissions to the *actual* metadata, from the "metadata" file to ensure it wasn't lied to. However, the actual metadata contents are loaded in several places where they are read as simple C-style strings. That means that, if the metadata file includes a null terminator, only the content of the file from *before* the terminator gets compared to xa.metadata. Thus, any permissions that appear in the metadata file after a null terminator are applied at runtime but not shown to the user. So maliciously crafted apps can give themselves hidden permissions. Users who have Flatpaks installed from untrusted sources are at risk in case the Flatpak has a maliciously crafted metadata file, either initially or in an update. This issue is patched in versions 1.12.3 and 1.10.6. As a workaround, users can manually check the permissions of installed apps by checking the metadata file or the xa.metadata key on the commit metadata.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
National Vulnerability Database | |
---|---|
Base Score | 6.8 |
Vector | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Access Vector | Network |
Access Complexity | Medium |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 8.6 | 8.2 |
Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
Attack Vector | Local | Local |
Attack Complexity | Low | Low |
Privileges Required | None | None |
User Interaction | Required | Required |
Scope | Changed | Changed |
Confidentiality Impact | High | High |
Integrity Impact | High | High |
Availability Impact | High | None |
CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2022:0712-1, published Fri Mar 4 14:19:57 UTC 2022
- SUSE-SU-2022:3284-1, published Thu Sep 15 19:19:36 UTC 2022
- openSUSE-SU-2022:0712-1, published Fri Mar 4 16:40:56 2022
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
SUSE CaaS Platform 4.0 |
| Patchnames: SUSE-SUSE-CAASP-4.0-2022-3284 |
SUSE Enterprise Storage 6 |
| Patchnames: SUSE-Storage-6-2022-3284 |
SUSE Enterprise Storage 7.1 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 Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2 |
| Patchnames: SUSE-SLE-Module-Desktop-Applications-15-SP3-2022-712 |
SUSE Enterprise Storage 7 |
| Patchnames: SUSE-Storage-7-2022-712 |
SUSE Liberty Linux 8 |
| Patchnames: RHSA-2022:1792 |
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 |
SUSE Linux Enterprise Desktop 15 SP5 SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Module for Desktop Applications 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
| Patchnames: SUSE Linux Enterprise Module for Desktop Applications 15 SP5 GA flatpak-1.14.4-150500.1.3 |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP1-ESPOS-2022-3284 |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP1-LTSS-2022-3284 |
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP2-ESPOS-2022-712 |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS |
| Patchnames: SUSE-SLE-Product-HPC-15-SP2-LTSS-2022-712 |
SUSE Linux Enterprise Real Time 15 SP2 |
| Patchnames: SUSE-SLE-Product-RT-15-SP2-2022-712 |
SUSE Linux Enterprise Server 15 SP1-BCL |
| Patchnames: SUSE-SLE-Product-SLES-15-SP1-BCL-2022-3284 |
SUSE Linux Enterprise Server 15 SP1-LTSS |
| Patchnames: SUSE-SLE-Product-SLES-15-SP1-LTSS-2022-3284 |
SUSE Linux Enterprise Server 15 SP2-BCL |
| Patchnames: SUSE-SLE-Product-SLES-15-SP2-BCL-2022-712 |
SUSE Linux Enterprise Server 15 SP2-LTSS |
| Patchnames: SUSE-SLE-Product-SLES-15-SP2-LTSS-2022-712 |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 |
| Patchnames: SUSE-SLE-Product-SLES_SAP-15-SP1-2022-3284 |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 |
| Patchnames: SUSE-SLE-Product-SLES_SAP-15-SP2-2022-712 |
SUSE Manager Proxy 4.1 |
| Patchnames: SUSE-SLE-Product-SUSE-Manager-Proxy-4.1-2022-712 |
SUSE Manager Retail Branch Server 4.1 |
| Patchnames: SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.1-2022-712 |
SUSE Manager Server 4.1 |
| Patchnames: SUSE-SLE-Product-SUSE-Manager-Server-4.1-2022-712 |
openSUSE Leap 15.3 |
| Patchnames: openSUSE-SLE-15.3-2022-712 |
openSUSE Leap 15.4 |
| Patchnames: openSUSE Leap 15.4 GA flatpak-1.12.5-150400.1.11 |
openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-11740 |
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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
Product(s) | Source package | State |
---|---|---|
Products under general support and receiving all security fixes. | ||
SUSE Manager Proxy 4.3 | flatpak | Already fixed |
SUSE Manager Retail Branch Server 4.3 | flatpak | Already fixed |
SUSE Manager Server 4.3 | flatpak | Already fixed |
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise Desktop 15 SP4 | flatpak | Already fixed |
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 SP3-ESPOS | flatpak | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | flatpak | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | flatpak | Already fixed |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | 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 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 SP3-LTSS | flatpak | Affected |
SUSE Linux Enterprise Server 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise Server 15 SP4-LTSS | flatpak | Already fixed |
SUSE Linux Enterprise Server 15-ESPOS | flatpak | Won't fix |
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | flatpak | Released |
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 | flatpak | Released |
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 |
Products past their end of life and not receiving proactive updates anymore. | ||
SUSE CaaS Platform 4.0 | flatpak | Released |
SUSE Enterprise Storage 6 | flatpak | Released |
SUSE Enterprise Storage 7 | flatpak | Released |
SUSE Enterprise Storage 7.1 | flatpak | Released |
SUSE Linux Enterprise Desktop 15 | flatpak | Won't fix |
SUSE Linux Enterprise Desktop 15 SP1 | flatpak | Affected |
SUSE Linux Enterprise Desktop 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Desktop 15 SP3 | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15 | flatpak | Won't fix |
SUSE Linux Enterprise High Performance Computing 15 SP1 | flatpak | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | flatpak | Released |
SUSE Linux Enterprise High Performance Computing 15-ESPOS | flatpak | Won't fix |
SUSE Linux Enterprise High Performance Computing 15-LTSS | flatpak | Won't fix |
SUSE Linux Enterprise Module for Desktop Applications 15 | flatpak | Won't fix |
SUSE Linux Enterprise Module for Desktop Applications 15 SP1 | flatpak | Affected |
SUSE Linux Enterprise Real Time 15 SP2 | flatpak | Released |
SUSE Linux Enterprise Real Time 15 SP3 | flatpak | Affected |
SUSE Linux Enterprise Real Time 15 SP4 | flatpak | Already fixed |
SUSE Linux Enterprise Server 15 | flatpak | Won't fix |
SUSE Linux Enterprise Server 15 SP1 | flatpak | Affected |
SUSE Linux Enterprise Server 15 SP1-BCL | flatpak | Released |
SUSE Linux Enterprise Server 15 SP1-LTSS | flatpak | Released |
SUSE Linux Enterprise Server 15 SP2-BCL | flatpak | Released |
SUSE Linux Enterprise Server 15 SP3-BCL | flatpak | Affected |
SUSE Linux Enterprise Server 15-LTSS | flatpak | Won't fix |
SUSE Linux Enterprise Server for SAP Applications 15 | flatpak | Won't fix |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | flatpak | Released |
SUSE Manager Proxy 4.0 | flatpak | Affected |
SUSE Manager Proxy 4.1 | flatpak | Released |
SUSE Manager Proxy 4.2 | flatpak | Released |
SUSE Manager Retail Branch Server 4.0 | flatpak | Affected |
SUSE Manager Retail Branch Server 4.1 | flatpak | Released |
SUSE Manager Retail Branch Server 4.2 | flatpak | Released |
SUSE Manager Server 4.0 | flatpak | Affected |
SUSE Manager Server 4.1 | flatpak | Released |
SUSE Manager Server 4.2 | flatpak | Released |
openSUSE Leap 15.3 | flatpak | Affected |
openSUSE Leap 15.4 | flatpak | Already fixed |
SUSE Timeline for this CVE
CVE page created: Wed Jan 12 21:45:04 2022CVE page last modified: Fri Sep 13 13:15:06 2024