PT-2019-20154 · Waitress · Waitress
Publicado
2019-12-20
·
Atualizado
2019-12-20
Nenhuma
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Name of the Vulnerable Software and Affected Versions
Waitress versions prior to 1.4.0
Description
The issue arises from the incorrect parsing of the Transfer-Encoding header, which should be a comma-separated list with the inner-most encoding first, followed by any further transfer codings, ending with chunked. When a request is sent with a header like "Transfer-Encoding: gzip, chunked", it would be ignored, and the request would use the Content-Length header instead to determine the body size of the HTTP message. This could allow Waitress to treat a single request as multiple requests in the case of HTTP pipelining.
Recommendations
For versions prior to 1.4.0, update to Waitress 1.4.0 to resolve the issue.
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Identificadores relacionados
Produtos afetados
Waitress