Sebastian Pipping 0a01ed6c2a [3.12] gh-115398: Expose Expat >=2.6.0 reparse deferral API (CVE-2023-52425) (GH-115623) (GH-116248) ...

Allow controlling Expat >=2.6.0 reparse deferral (CVE-2023-52425) by adding five new methods:

- `xml.etree.ElementTree.XMLParser.flush`
- `xml.etree.ElementTree.XMLPullParser.flush`
- `xml.parsers.expat.xmlparser.GetReparseDeferralEnabled`
- `xml.parsers.expat.xmlparser.SetReparseDeferralEnabled`
- `xml.sax.expatreader.ExpatParser.flush`

Based on the "flush" idea from https://github.com/python/cpython/pull/115138#issuecomment-1932444270 .

- Please treat as a security fix related to CVE-2023-52425.

(cherry picked from commit 6a95676bb5)
(cherry picked from commit 73807eb634)
(cherry picked from commit eda2963378)

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Includes code suggested-by: Snild Dolkow <snild@sony.com>
and by core dev Serhiy Storchaka.
Co-authored-by: Gregory P. Smith <greg@krypto.org>

2024-03-06 22:01:45 +00:00

..

__init__.py

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_exceptions.py

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expatreader.py

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handler.py

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saxutils.py

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xmlreader.py

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