| Package | Affected versions | Patched versions |
|---|---|---|
| org.eclipse.jetty:jetty-server | ≥ 10.0.0, < 10.0.1≥ 11.0.0, < 11.0.1≥ 9.4.6, < 9.4.37 | 10.0.111.0.19.4.37 |
| nifi | = 1.13.0 | |
| solr | = 8.8.1 | |
| spark | = 3.1.1 | |
| jetty | = 10.0.0= 11.0.0= 9.4.36= 9.4.6≥ 9.4.7, < 9.4.36 | 9.4.36 |
| e-series santricity os controller | ≥ 11.0.0, ≤ 11.70.1 | |
| rest data services | < 20.4.3.050.1904 | 20.4.3.050.1904 |
When Jetty handles a request containing request headers with a large number of “quality” (i.e. q) parameters (such as what are seen on the Accept, Accept-Encoding, and Accept-Language request headers), the server may enter a denial of service (DoS) state due to high CPU usage while sorting the list of values based on their quality values. A single request can easily consume minutes of CPU time before it is even dispatched to the application.
The only features within Jetty that can trigger this behavior are:
Accept request header with the QuotedQualityCSV is used to determine what kind of content to send back to the client (html, text, json, xml, etc)StatisticsServlet - uses the Accept request header with the QuotedQualityCSV to determine what kind of content to send back to the client (xml, json, text, html, etc)HttpServletRequest.getLocale() - uses the Accept-Language request header with the QuotedQualityCSV to determine which “preferred” language is returned on this call.HttpservletRequest.getLocales() - is similar to the above, but returns an ordered list of locales based on the quality values on the Accept-Language request header.DefaultServlet - uses the Accept-Encoding request header with the QuotedQualityCSV to determine which kind of pre-compressed content should be sent back for static content (content that is not matched against a url-pattern in your web app)QuotedQualityCSV was introduced to Jetty 9.3.9.v20160517 and the bug that introduced the vulnerability was in 9.4.6.v20170531.
Currently, known vulnerable versions include:
Quality ordered values are used infrequently by jetty so they can be avoided by:
StatisticsServlet exposed to the networkgetLocale APIDefaultServletAll patches are available for download from the Eclipse Jetty website at https://www.eclipse.org/jetty/download.php
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