The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade RHEL:8
jws5-tomcat
to version 0:9.0.30-3.redhat_4.1.el8jws or higher.
This issue was patched in RHSA-2020:1520
.
Note: Versions mentioned in the description apply only to the upstream jws5-tomcat
package and not the jws5-tomcat
package as distributed by RHEL
.
See How to fix?
for RHEL:8
relevant fixed versions and status.
The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.