PYSEC-2023-113

2023-07-0317:15:00

Google

osv.dev

python

marshal module

portalfolder

unauthenticated

denial of service

vulnerability

cmfcore

plone

deployment

fixed version 3.2

zope

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

37.7%

JSON

Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python’s marshal module to handle unchecked input in a public method on PortalFolder objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of Products.CMFCore, such as Plone. All deployments are vulnerable. The code has been fixed in Products.CMFCore version 3.2.