#VU59689 Path traversal in Flatpak - CVE-2022-21682
Published: January 18, 2022 / Updated: February 3, 2022
Vulnerability identifier: #VU59689
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2022-21682
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Flatpak
Flatpak
Software vendor:
Flatpak
Flatpak
Description
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.
Remediation
Install update from vendor's website.
External links
- 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