A bug in the handling of the pipelined requests in Apache Tomcat 9.0.0.M1 to 9.0.0.M18, 8.5.0 to 8.5.12, 8.0.0.RC1 to 8.0.42, 7.0.0 to 7.0.76, and 6.0.0 to 6.0.52, when send file was used, results in the pipelined request being lost when send file processing of the previous request completed. This could result in responses appearing to be sent for the wrong request. For example, a user agent that sent requests A, B and C could see the correct response for request A, the response for request C for request B and no response for request C.

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Affected package information

Release Package Patched in
precise/esm tomcat6 None
trusty tomcat6 None
tomcat7 7.0.52-1ubuntu0.13
upstream tomcat6 6.0.41-3
tomcat7 7.0.72-3
tomcat8 8.5.11-2
xenial tomcat7 None
tomcat8 8.0.32-1ubuntu1.5
zesty tomcat8 8.0.38-2ubuntu2.2


Release Package Reason
precise tomcat7 ignored
tomcat6 ignored
tomcat8 DNE
precise/esm tomcat7 DNE
tomcat8 DNE
vivid/stable-phone-overlay tomcat7 DNE
tomcat6 DNE
tomcat8 DNE
vivid/ubuntu-core tomcat7 DNE
tomcat6 DNE
tomcat8 DNE
yakkety tomcat7 ignored
tomcat6 DNE
tomcat8 ignored
zesty tomcat7 not-affected
tomcat6 DNE
artful tomcat7 not-affected
tomcat6 DNE
tomcat8 not-affected
devel tomcat7 not-affected
tomcat6 DNE
tomcat8 not-affected
xenial tomcat6 not-affected
trusty tomcat8 DNE