Akshay Kotecha Jain created KNOX-2587:
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Summary: Upgrade to jetty-server-11.0.0.beta3
Key: KNOX-2587
URL: https://issues.apache.org/jira/browse/KNOX-2587
Project: Apache Knox
Issue Type: Improvement
Reporter: Akshay Kotecha Jain
In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too
large response headers, Jetty throws an exception to produce an HTTP 431 error.
When this happens, the ByteBuffer containing the HTTP response headers is
released back to the ByteBufferPool twice. Because of this double release, two
threads can acquire the same ByteBuffer from the pool and while thread1 is
about to use the ByteBuffer to write response1 data, thread2 fills the
ByteBuffer with other data. Thread1 then proceeds to write the buffer that now
contains different data. This results in client1, which issued request1 seeing
data from another request or response which could contain sensitive data
belonging to client2 (HTTP session ids, authentication credentials, etc.). If
the Jetty version cannot be upgraded, the vulnerability can be significantly
reduced by configuring a responseHeaderSize significantly larger than the
requestHeaderSize (12KB responseHeaderSize and 8KBrequestHeaderSize).
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