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Debian DSA-4868-1 : flatpak - security update

high Nessus Plugin ID 147784

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Synopsis

The remote Debian host is missing a security-related update.

Description

Anton Lydike discovered that sandbox restrictions in Flatpak, an application deployment framework for desktop apps, could be bypassed via a malicious .desktop file.

Solution

Upgrade the flatpak packages.

For the stable distribution (buster), this problem has been fixed in version 1.2.5-0+deb10u4.

See Also

https://security-tracker.debian.org/tracker/source-package/flatpak

https://packages.debian.org/source/buster/flatpak

https://www.debian.org/security/2021/dsa-4868

Plugin Details

Severity: High

ID: 147784

File Name: debian_DSA-4868.nasl

Version: 1.3

Type: local

Agent: unix

Published: 3/15/2021

Updated: 3/23/2021

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

Risk Information

VPR

Risk Factor: High

Score: 7.1

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2021-21381

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:flatpak, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/12/2021

Vulnerability Publication Date: 3/11/2021

Reference Information

CVE: CVE-2021-21381

DSA: 4868