OESA-2021-1043

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1043
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2021-1043.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2021-1043
Upstream
Published
2021-03-05T11:02:37Z
Modified
2025-08-12T05:07:09.916770Z
Summary
flatpak security update
Details

flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information.

Security Fix(es):

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. A bug was discovered in the flatpak-portal service that can allow sandboxed applications to execute arbitrary code on the host system (a sandbox escape). This sandbox-escape bug is present in versions from 0.11.4 and before fixed versions 1.8.5 and 1.9.4. The Flatpak portal D-Bus service (flatpak-portal, also known by its D-Bus service name org.freedesktop.portal.Flatpak) allows apps in a Flatpak sandbox to launch their own subprocesses in a new sandbox instance, either with the same security settings as the caller or with more restrictive security settings. For example, this is used in Flatpak-packaged web browsers such as Chromium to launch subprocesses that will process untrusted web content, and give those subprocesses a more restrictive sandbox than the browser itself. In vulnerable versions, the Flatpak portal service passes caller-specified environment variables to non-sandboxed processes on the host system, and in particular to the flatpak run command that is used to launch the new sandbox instance. A malicious or compromised Flatpak app could set environment variables that are trusted by the flatpak run command, and use them to execute arbitrary code that is not in a sandbox. As a workaround, this vulnerability can be mitigated by preventing the flatpak-portal service from starting, but that mitigation will prevent many Flatpak apps from working correctly. This is fixed in versions 1.8.5 and 1.9.4.(CVE-2021-21261)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS / flatpak

Package

Name
flatpak
Purl
pkg:rpm/openEuler/flatpak&distro=openEuler-20.03-LTS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.3-3.oe1

Ecosystem specific 

{
    "src": [
        "flatpak-1.0.3-3.oe1.src.rpm",
        "flatpak-1.0.3-3.oe1.src.rpm"
    ],
    "noarch": [
        "flatpak-help-1.0.3-3.oe1.noarch.rpm",
        "flatpak-help-1.0.3-3.oe1.noarch.rpm"
    ],
    "x86_64": [
        "flatpak-devel-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-debugsource-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-debuginfo-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-devel-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-debugsource-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-debuginfo-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-1.0.3-3.oe1.x86_64.rpm"
    ],
    "aarch64": [
        "flatpak-debugsource-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-debuginfo-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-devel-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-debugsource-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-debuginfo-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-devel-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-1.0.3-3.oe1.aarch64.rpm"
    ]
}

openEuler:20.03-LTS-SP1 / flatpak

Package

Name
flatpak
Purl
pkg:rpm/openEuler/flatpak&distro=openEuler-20.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.3-3.oe1

Ecosystem specific 

{
    "src": [
        "flatpak-1.0.3-3.oe1.src.rpm"
    ],
    "noarch": [
        "flatpak-help-1.0.3-3.oe1.noarch.rpm"
    ],
    "x86_64": [
        "flatpak-devel-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-debugsource-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-debuginfo-1.0.3-3.oe1.x86_64.rpm",
        "flatpak-1.0.3-3.oe1.x86_64.rpm"
    ],
    "aarch64": [
        "flatpak-debugsource-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-debuginfo-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-devel-1.0.3-3.oe1.aarch64.rpm",
        "flatpak-1.0.3-3.oe1.aarch64.rpm"
    ]
}