Path traversal in Flatpak - CVE-2022-21682

Vulnerability identifier: #VU59689

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-21682

CWE-ID: CWE-22

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when flatpak-builder applies "finish-args" last in the build. A remote authenticated attacker can send a specially crafted HTTP request and create arbitrary files on the system.

Flatpak
Gentoo Linux
Oracle Linux
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Enterprise Storage
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
SUSE Linux Enterprise Realtime Extension
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Server
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Module for Desktop Applications
SUSE Linux Enterprise Desktop
openEuler
Fedora
flatpak (Debian package)
flatpak-builder-debuginfo
flatpak-builder-debugsource
flatpak-builder
flatpak-builder (Red Hat package)
flatpak
flatpak-devel
flatpak-zsh-completion
libflatpak0
libflatpak0-debuginfo
system-user-flatpak
typelib-1_0-Flatpak-1_0
flatpak-debugsource
flatpak-debuginfo
sys-apps/flatpak

Install update from vendor's website.

Flatpak - addressed in versions 1.8.7, 1.10.6, 1.12.3
flatpak (Debian package) - update to 1.10.7-0+deb11u1
flatpak-builder-debuginfo - update to 1.0.14-2
flatpak-builder-debugsource - update to 1.0.14-2
flatpak-builder - update to 1.0.14-2
flatpak-builder (Red Hat package) - update to 1.0.14-2.el8
flatpak-builder - addressed in versions 1.2.2-1.fc34, 1.2.2-1.fc35
flatpak - addressed in versions 1.10.6-1.fc34, 1.10.7-1.fc34, 1.12.3-1.fc35, 1.12.4-1.fc35
flatpak-devel - update to 1.10.7-4.12.1
flatpak-zsh-completion - update to 1.10.7-4.12.1
libflatpak0 - update to 1.10.7-4.12.1
libflatpak0-debuginfo - update to 1.10.7-4.12.1
system-user-flatpak - update to 1.10.7-4.12.1
typelib-1_0-Flatpak-1_0 - update to 1.10.7-4.12.1
flatpak-debugsource - update to 1.10.7-4.12.1
flatpak-debuginfo - update to 1.10.7-4.12.1
flatpak - update to 1.10.7-4.12.1
sys-apps/flatpak - update to 1.14.4

• https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx
• https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa
• https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/
• https://github.com/flatpak/flatpak/releases/tag/1.8.7

• Path traversal in Flatpak
• Debian update for flatpak
• Red Hat Enterprise Linux 8 update for flatpak-builder
• SUSE update for flatpak
• Multiple vulnerabilities in Oracle Linux
• Gentoo update for Flatpak
• openEuler 22.03 LTS update for flatpak-builder
• Fedora 35 update for flatpak
• Fedora 34 update for flatpak
• Fedora 35 update for flatpak, flatpak-builder
• Fedora 34 update for flatpak, flatpak-builder