New submission from Mark Deen <m...@markdeen.io>:
The hexadecimal sequence '3c215b02634717' when passed as an argument to
HTMLParser()'s feed function results in the exception noted below. The code
example below illustrates this exception.
from html.parser import HTMLParser
parser = HTMLParser()
parser.feed(bytearray.fromhex('3c215b02634717').decode('ascii'))
Traceback (most recent call last):
File "poc.py", line 5, in <module>
parser.feed(bytearray.fromhex('3c215b02634717').decode('ascii'))
File "/usr/lib/python3.9/html/parser.py", line 110, in feed
self.goahead(0)
File "/usr/lib/python3.9/html/parser.py", line 178, in goahead
k = self.parse_html_declaration(i)
File "/usr/lib/python3.9/html/parser.py", line 263, in parse_html_declaration
return self.parse_marked_section(i)
File "/usr/lib/python3.9/_markupbase.py", line 149, in parse_marked_section
sectName, j = self._scan_name( i+3, i )
File "/usr/lib/python3.9/_markupbase.py", line 390, in _scan_name
self.error("expected name token at %r"
File "/usr/lib/python3.9/_markupbase.py", line 33, in error
raise NotImplementedError(
NotImplementedError: subclasses of ParserBase must override error()
----------
components: Parser
messages: 399611
nosy: lys.nikolaou, md103, pablogsal
priority: normal
severity: normal
status: open
title: Unhandled Exception (Not Implemented) in HTMLParser().feed
type: security
versions: Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue44918>
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