Improper Control of Dynamically-Managed Code Resources Affecting restrictedpython package, versions <6.2-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.16% (53rd percentile)

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  • Snyk IDSNYK-DEBIAN13-RESTRICTEDPYTHON-5776729
  • published15 Jul 2023
  • disclosed11 Jul 2023

Introduced: 11 Jul 2023

CVE-2023-37271  (opens in a new tab)
CWE-913  (opens in a new tab)

How to fix?

Upgrade Debian:13 restrictedpython to version 6.2-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream restrictedpython package and not the restrictedpython package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

RestrictedPython is a tool that helps to define a subset of the Python language which allows users to provide a program input into a trusted environment. RestrictedPython does not check access to stack frames and their attributes. Stack frames are accessible within at least generators and generator expressions, which are allowed inside RestrictedPython. Prior to versions 6.1 and 5.3, an attacker with access to a RestrictedPython environment can write code that gets the current stack frame in a generator and then walk the stack all the way beyond the RestrictedPython invocation boundary, thus breaking out of the restricted sandbox and potentially allowing arbitrary code execution in the Python interpreter. All RestrictedPython deployments that allow untrusted users to write Python code in the RestrictedPython environment are at risk. In terms of Zope and Plone, this would mean deployments where the administrator allows untrusted users to create and/or edit objects of type Script (Python), DTML Method, DTML Document or Zope Page Template. This is a non-default configuration and likely to be extremely rare. The problem has been fixed in versions 6.1 and 5.3.

CVSS Scores

version 3.1