Test ID:	1.3.6.1.4.1.25623.1.0.844817
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-4721-1)
Summary:	The remote host is missing an update for the 'flatpak' package(s) announced via the USN-4721-1 advisory.
Description:	Summary: The remote host is missing an update for the 'flatpak' package(s) announced via the USN-4721-1 advisory. Vulnerability Insight: Simon McVittie discovered that flatpak-portal service allowed sandboxed applications to execute arbitrary code on the host system (a sandbox escape). A malicious user could create a Flatpak application that set environment variables, trusted by the Flatpak 'run' command, and use it to execute arbitrary code outside the sandbox. Affected Software/OS: 'flatpak' package(s) on Ubuntu 18.04, Ubuntu 20.04, Ubuntu 20.10. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-21261 https://github.com/flatpak/flatpak/security/advisories/GHSA-4ppf-fxf6-vxg2 Debian Security Information: DSA-4830 (Google Search) https://www.debian.org/security/2021/dsa-4830 https://security.gentoo.org/glsa/202101-21 https://github.com/flatpak/flatpak/commit/6d1773d2a54dde9b099043f07a2094a4f1c2f486 https://github.com/flatpak/flatpak/commit/6e5ae7a109cdfa9735ea7ccbd8cb79f9e8d3ae8b https://github.com/flatpak/flatpak/commit/aeb6a7ab0abaac4a8f4ad98b3df476d9de6b8bd4 https://github.com/flatpak/flatpak/commit/cc1401043c075268ecc652eac557ef8076b5eaba https://github.com/flatpak/flatpak/releases/tag/1.8.5
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