The error page mechanism of the Java Servlet Specification requires that, when an error occurs and an error page is configured for the error that occurred, the original request and response are forwarded to the error page. This means that the request is presented to the error page with the original HTTP method. If the error page is a static file, expected behaviour is to serve content of the file as if processing a GET request, regardless of the actual HTTP method. The Default Servlet in Apache Tomcat 9.0.0.M1 to 9.0.0.M20, 8.5.0 to 8.5.14, 8.0.0.RC1 to 8.0.43 and 7.0.0 to 7.0.77 did not do this. Depending on the original request this could lead to unexpected and undesirable results for static error pages including, if the DefaultServlet is configured to permit writes, the replacement or removal of the custom error page. Notes for other user provided error pages: (1) Unless explicitly coded otherwise, JSPs ignore the HTTP method. JSPs used as error pages must must ensure that they handle any error dispatch as a GET request, regardless of the actual method. (2) By default, the response generated by a Servlet does depend on the HTTP method. Custom Servlets used as error pages must ensure that they handle any error dispatch as a GET request, regardless of the actual method.
www.debian.org/security/2017/dsa-3891
www.debian.org/security/2017/dsa-3892
www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
access.redhat.com/errata/RHSA-2017:1801
access.redhat.com/errata/RHSA-2017:1802
access.redhat.com/errata/RHSA-2017:1809
access.redhat.com/errata/RHSA-2017:2493
access.redhat.com/errata/RHSA-2017:2494
access.redhat.com/errata/RHSA-2017:2633
access.redhat.com/errata/RHSA-2017:2635
access.redhat.com/errata/RHSA-2017:2636
access.redhat.com/errata/RHSA-2017:2637
access.redhat.com/errata/RHSA-2017:2638
access.redhat.com/errata/RHSA-2017:3080
github.com/apache/tomcat
github.com/apache/tomcat/commit/29893e66111d33cfe99dd01cb146317c0c262ef4
github.com/apache/tomcat/commit/3242efea525df01d15da6e90ea69a9a21b10b454
github.com/apache/tomcat/commit/3bfe9fb886598c4d8ecbe674216152006bbce456
github.com/apache/tomcat/commit/4545dcce444aa619374a659cb450dbbd0be3c921
github.com/apache/tomcat/commit/58b32048ce25cb812ae394dafb0cd57254c68155
github.com/apache/tomcat/commit/7d93527254d9e9371b342800617f20d13c8b85ad
github.com/apache/tomcat80/commit/25d3c0d93190ef165ecd6c744bc15b5059abfa8f
github.com/apache/tomcat80/commit/e070a31ec81b56377822e44883c64abb41f36a3b
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nvd.nist.gov/vuln/detail/CVE-2017-5664
security.netapp.com/advisory/ntap-20171019-0002
support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03828en_us
web.archive.org/web/20170801120345/www.securitytracker.com/id/1038641
web.archive.org/web/20170805032345/www.securityfocus.com/bid/98888
www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html