restrictedpython: RestrictedPython is a restricted execution environment for Python to run untrusted code
CVE-2023-41039 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2023-41039, released August 30, 2023. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python3-restrictedpython · Ubuntu 20.04 LTS (focal) | 4.0~b3-2ubuntu0.1~esm1 | python3-restrictedpython 4.0~b3-2ubuntu0.1~esm1 | Sep 30, 2024 |
| python3-restrictedpython · Ubuntu 22.04.1 LTS (jammy) | 4.0~b3-3ubuntu0.1~esm1 | python3-restrictedpython 4.0~b3-3ubuntu0.1~esm1 | Sep 30, 2024 |
| restrictedpython · Debian 13.5 (trixie) | 6.2-1 | DEBIAN-CVE-2023-41039 | Aug 30, 2023 |
| restrictedpython · Debian 14 | 6.2-1 | DEBIAN-CVE-2023-41039 | Aug 30, 2023 |
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