[issue31170] Update to expat 2.2.4 (expat: utf8_toUtf8 cannot properly handle exhausting buffer)

[Larry Hastings]

Larry Hastings added the comment:


New changeset 86a713cb0c110b6798ca7f9e630fc511ee0a4028 by larryhastings (Victor Stinner) in branch '3.4':
[3.4][Security] bpo-30947, bpo-31170: Update expat from 2.2.1 to 2.2.4 (#3353)
https://github.com/python/cpython/commit/86a713cb0c110b6798ca7f9e630fc511ee0a4028


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<https://bugs.python.org/issue31170>
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