CVE-2023-27476

Description

OWSLib is a Python package for client programming with Open Geospatial Consortium (OGC) web service interface standards, and their related content models. OWSLib's XML parser (which supports both `lxml` and `xml.etree`) does not disable entity resolution, and could lead to arbitrary file reads from an attacker-controlled XML payload. This affects all XML parsing in the codebase. This issue has been addressed in version 0.28.1. All users are advised to upgrade. The only known workaround is to patch the library manually. See `GHSA-8h9c-r582-mggc` for details.

How to fix CVE-2023-27476

To remediate CVE-2023-27476, upgrade the affected package to a fixed version below.

• —upgrade to 0.23.0-1+deb11u1 or later
• —upgrade to 0.17.1-1+deb10u1 or later
• —upgrade to 0.23.0-1+deb11u1 or later
• —upgrade to 0.28.1 or later
• —upgrade to b92687702be9576c0681bb11cad21eb631b9122f or later

Is CVE-2023-27476 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (5)

• from 0, < 0.23.0-1+deb11u1
• from 0, < 0.17.1-1+deb10u1
• from 0, < 0.23.0-1+deb11u1
• from 0, < 0.28.1
• from 0, < b92687702be9576c0681bb11cad21eb631b9122f | from 0, < 0.28.1

CVSS scores

References (12)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-27476
• ADVISORYsecuritylab.github.com/advisories/GHSL-2022-131_owslib
• ADVISORYsecuritylab.github.com/advisories/GHSL-2022-131_owslib/
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2023-27476
• PATCH