Amazon Linux 2022 : flatpak, flatpak-devel, flatpak-libs (ALAS2022-2022-179)

high Nessus Plugin ID 167016

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Synopsis

The remote Amazon Linux 2022 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-179 advisory.

An incorrect authorization vulnerability was found in Flatpak. Flatpak does not 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. This issue allows apps to grant themselves permissions without the user's consent. (CVE-2021-43860)

A path traversal vulnerability was found in Flatpak. This happens when flatpak-builder applies `finish- args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. (CVE-2022-21682)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'dnf update flatpak --releasever=2022.0.20221102' to update your system.

Plugin Details

Severity: High

ID: 167016

File Name: al2022_ALAS2022-2022-179.nasl

Version: 1.3

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 11/5/2022

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2021-43860

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:flatpak-tests-debuginfo, p-cpe:/a:amazon:linux:flatpak-tests, p-cpe:/a:amazon:linux:flatpak-debugsource, p-cpe:/a:amazon:linux:flatpak-selinux, p-cpe:/a:amazon:linux:flatpak-session-helper-debuginfo, cpe:/o:amazon:linux:2022, p-cpe:/a:amazon:linux:flatpak, p-cpe:/a:amazon:linux:flatpak-libs, p-cpe:/a:amazon:linux:flatpak-debuginfo, p-cpe:/a:amazon:linux:flatpak-devel, p-cpe:/a:amazon:linux:flatpak-session-helper, p-cpe:/a:amazon:linux:flatpak-libs-debuginfo

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/1/2022

Vulnerability Publication Date: 1/12/2022

Reference Information

CVE: CVE-2021-43860, CVE-2022-21682

Detections

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