RestrictedPython is a restricted execution environment for Python to run untrusted code. Pythons 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.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Restrictedpython | Zope | * | 5.4 (excluding) |
| Restrictedpython | Zope | 6.0 (including) | 6.2 (excluding) |
| Restrictedpython | Ubuntu | bionic | * |
| Restrictedpython | Ubuntu | lunar | * |
| Restrictedpython | Ubuntu | mantic | * |
| Restrictedpython | Ubuntu | trusty | * |
| Restrictedpython | Ubuntu | xenial | * |