SB2021040732 - SUSE update for flatpak, libostree, xdg-desktop-portal, xdg-desktop-portal-gtk
Published: April 7, 2021
Security Bulletin ID
SB2021040732
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Code Injection (CVE-ID: CVE-2021-21261)
The vulnerability allows a local application to elevate privileges on the system.
The vulnerability exists due to improper input validation when processing environment variables, passed from a sandboxed process to a non-sandboxed process 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 can set environment variables that are trusted by the `flatpak run` command, and use them to execute arbitrary code that is not in a sandbox.
Remediation
Install update from vendor's website.