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CVE-2023-41039

Published: 31 August 2023

RestrictedPython is a restricted execution environment for Python to run untrusted code. Python's "format" functionality allows someone controlling the format string to "read" all objects accessible through recursive attribute lookup and subscription from objects he can access. This can lead to critical information disclosure. With `RestrictedPython`, the format functionality is available via the `format` and `format_map` methods of `str` (and `unicode`) (accessed either via the class or its instances) and via `string.Formatter`. All known versions of `RestrictedPython` are vulnerable. This issue has been addressed in commit `4134aedcff1` which has been included in the 5.4 and 6.2 releases. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Priority

Medium

Status

Package Release Status
restrictedpython
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Needs triage

bionic Needs triage

focal Needs triage

jammy Needs triage

lunar Needs triage

upstream Needs triage