[3.6] bpo-37461: Fix infinite loop in parsing of specially crafted email headers (GH-14794) #14817
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…aders (pythonGH-14794) * bpo-37461: Fix infinite loop in parsing of specially crafted email headers. Some crafted email header would cause the get_parameter method to run in an infinite loop causing a DoS attack surface when parsing those headers. This patch fixes that by making sure the DQUOTE character is handled to prevent going into an infinite loop. (cherry picked from commit a4a994b) Co-authored-by: Abhilash Raj <maxking@users.noreply.github.com>
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I guess there is need for a restart, there seems to be a test which was stuck for a long time and tests timed out:
The tests on Appveyor and Travis went through smoothly. |
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Some crafted email header would cause the get_parameter method to run in an
infinite loop causing a DoS attack surface when parsing those headers. This
patch fixes that by making sure the DQUOTE character is handled to prevent
going into an infinite loop.
(cherry picked from commit a4a994b)
Co-authored-by: Abhilash Raj maxking@users.noreply.github.com
https://bugs.python.org/issue37461