Impact The original report:

Server handling of 100-Continue requests can lead to memory leak that can be abused to cause a Denial of Service state.

After investigation, turns out that every request that has a body, but reading the body may end up in reading 0 bytes, leaks a buffer. This is particularly the case for 100-Continue, but any request where the network is slow can leak.

Affected Versions

Jetty 11.0.0-11.0.22 (EOL) Jetty 10.0.0-10.0.22 (EOL)

Patched Versions

Jetty 11.0.23 Jetty 10.0.23

Patches

https://github.com/jetty/jetty.project/pull/12156

Workarounds

No workarounds.

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Requests (aka python-requests) before 2.3.0 allows remote servers to obtain a netrc password by reading the Authorization header in a redirected request.

Requests (aka python-requests) before 2.3.0 allows remote servers to obtain sensitive information by reading the Proxy-Authorization header in a redirected request.

The resolveredirects function in sessions.py in requests 2.1.0 through 2.5.3 allows remote attackers to conduct session fixation attacks via a cookie without a host value in a redirect.