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[3.11] gh-115398: Expose Expat >=2.6.0 reparse deferral API (CVE-2023-52425) (GH-115623)#116268
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…52425) (pythonGH-115623)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 frompython#115138 (comment) .- Please treat as a security fix related toCVE-2023-52425.Includes code suggested-by: Snild Dolkow <snild@sony.com>and by core dev Serhiy Storchaka.(cherry picked from commit6a95676)
…t API availability (pythonGH-116278)Suggest use of "hasattr" with checking for 3.13 Expat API availability(cherry picked from commit73807eb)
(cherry picked from commiteda2963)
e2108d7 to8b338a9Comparegpshead approved these changesMar 6, 2024
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Allow controlling Expat >=2.6.0 reparse deferral (CVE-2023-52425) by adding five new methods:
xml.etree.ElementTree.XMLParser.flushxml.etree.ElementTree.XMLPullParser.flushxml.parsers.expat.xmlparser.GetReparseDeferralEnabledxml.parsers.expat.xmlparser.SetReparseDeferralEnabledxml.sax.expatreader.ExpatParser.flushBased on the "flush" idea from#115138 (comment) .
Includes code suggested-by: Snild Dolkowsnild@sony.com
and by core dev Serhiy Storchaka.
(cherry picked from commit6a95676)
XML_SetReparseDeferralEnabled#115398📚 Documentation preview 📚:https://cpython-previews--116268.org.readthedocs.build/