Bug 1917430 (CVE-2021-21261)
| Summary: | CVE-2021-21261 flatpak: sandbox escape via spawn portal | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Michael Kaplan <mkaplan> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | amigadave, dking, klember |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | flatpak 1.8.5, flatpak 1.10.0 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw was found in Flatpak. The Flatpak portal D-Bus 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 outside the sandbox. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-02-01 14:41:47 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1917431, 1917432, 1918771, 1918772, 1918773, 1918774, 1918776 | ||
| Bug Blocks: | 1918334 | ||