Bug 2176416 (CVE-2023-27476)

Summary:	CVE-2023-27476 python-OWSLib: XML External Entity (XXE) Injection
Product:	[Other] Security Response	Reporter:	Mauro Matteo Cascella <mcascell>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	python-OWSLib 0.28.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-08 14:24:49 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2176417, 2176418, 2176419
Bug Blocks:

Description Mauro Matteo Cascella 2023-03-08 10:57:09 UTC

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.

GitHub Security Advisory:
https://github.com/geopython/OWSLib/security/advisories/GHSA-8h9c-r582-mggc

Upstream fix:
https://github.com/geopython/OWSLib/pull/863/commits/b92687702be9576c0681bb11cad21eb631b9122f

Comment 1 Mauro Matteo Cascella 2023-03-08 10:57:29 UTC

Created mingw-python-OWSLib tracking bugs for this issue:

Affects: fedora-all [bug 2176418]


Created python-OWSLib tracking bugs for this issue:

Affects: epel-all [bug 2176417]
Affects: fedora-all [bug 2176419]

Comment 2 Product Security DevOps Team 2023-03-08 14:24:47 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.