CVE-2022-4572 UBI Reader UBIFS File output.py ubireader_extract_files path traversal

Medium 5.4 Published 17 Dec 2022 Updated 15 Apr 2025

Attackers can exploit a path traversal flaw in the UBI Reader library to read or write arbitrary files when processing malicious UBIFS images.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2022-4572?

CVE-2022-4572 is a medium-severity path traversal vulnerability in unspecified UBI Reader, published on 17 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability, which was classified as problematic, has been found in UBI Reader up to 0.8.0. Affected by this issue is the function ubireader_extract_files of the file ubireader/ubifs/output.py of the component UBIFS File Handler. The manipulation leads to path traversal. The attack may be launched remotely. Upgrading to version 0.8.5 is able to address this issue. The name of the patch is d5d68e6b1b9f7070c29df5f67fc060f579ae9139. It is recommended to upgrade the affected component. VDB-216146 is the identifier assigned to this vulnerability.

Weakness: CWE-22

Which versions are affected by CVE-2022-4572?

3 open source packages ship an affected version, including ubi-reader. It affects 1 product.

Package	Affected	Fixed in
`ubi-reader` PyPI	All versions	`0.8.2`
`ubi-reader` PyPI	All versions	`0.8.5`
`ubi-reader` PyPI	All versions	`0.8.5`

Products include Ubi Reader Project Ubi Reader.

How do I fix CVE-2022-4572?

Upgrade ubi-reader to a fixed version for your release line: 0.8.2 or 0.8.5.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-4572 being exploited?

There is no known exploitation of CVE-2022-4572 in the wild and no public exploit code.

CVE-2023-0591 Path Traversal in ubi_reader Medium 5.5

Sources

Also known as GHSA-hc37-84v3-8gmq, PYSEC-2022-43016.