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[3.7] bpo-37764: Fix infinite loop when parsing unstructured email he…
…aders. (GH-15239) (GH-15654) …aders. (GH-15239) Fixes a case in which email._header_value_parser.get_unstructured hangs the system for some invalid headers. This covers the cases in which the header contains either: - a case without trailing whitespace - an invalid encoded word https://bugs.python.org/issue37764 This fix should also be backported to 3.7 and 3.8 https://bugs.python.org/issue37764 (cherry picked from commit c5b242f) Co-authored-by: Ashwin Ramaswami <aramaswamis@gmail.com> https://bugs.python.org/issue37764
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Misc/NEWS.d/next/Security/2019-08-27-01-13-05.bpo-37764.qv67PQ.rst
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Fixes email._header_value_parser.get_unstructured going into an infinite loop for a specific case in which the email header does not have trailing whitespace, and the case in which it contains an invalid encoded word. Patch by Ashwin Ramaswami. |