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Fix C stack overflow in pyexpat's conv_content_model when parsing deeply nested content model in inline DTD with registered ElementDeclHandler. Upstream: python/cpython@eb0e8be
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TAG Bot TAG: 2.7.18.1-1+deepindeepin1 |
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Security Update
Vulnerability Description
When an Expat parser with a registered ElementDeclHandler parses an
inline document type definition containing a deeply nested content model,
a C stack overflow occurs.
Changes
Modules/pyexpat.cPy_EnterRecursiveCall()andPy_LeaveRecursiveCall()to prevent stack overflowTesting
Upstream
python/cpython@eb0e8be