Skip to content

Conversation

@hartwork
Copy link
Contributor

@hartworkhartwork commented Mar 2, 2024

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 #115138 (comment) .

Includes code suggested-by: Snild Dolkow snild@sony.com
and by core dev Serhiy Storchaka.

(cherry picked from commit 6a95676)


📚 Documentation preview 📚: https://cpython-previews--116248.org.readthedocs.build/

…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 from python#115138 (comment) . - Please treat as a security fix related to CVE-2023-52425. Includes code suggested-by: Snild Dolkow <snild@sony.com> and by core dev Serhiy Storchaka. (cherry picked from commit 6a95676)
As suggested by Serhiy Storchaka
hartworkand others added 2 commits March 6, 2024 22:12
…t API availability (pythonGH-116278) Suggest use of "hasattr" with checking for 3.13 Expat API availability (cherry picked from commit 73807eb)
(cherry picked from commit eda2963)
@hartworkhartworkforce-pushed the backport-6a95676-3.12 branch from a5a8f3c to cafaa33CompareMarch 6, 2024 21:26
@gpsheadgpshead enabled auto-merge (squash) March 6, 2024 21:41
@gpsheadgpshead merged commit 0a01ed6 into python:3.12Mar 6, 2024
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

type-featureA feature request or enhancementtype-securityA security issue

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants

@hartwork@gpshead@serhiy-storchaka