HTTP Request Smuggling Affecting jws5-tomcat package, versions <0:9.0.50-3.redhat_00004.1.el8jws


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
15.54% (96th percentile)

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  • Snyk IDSNYK-RHEL8-JWS5TOMCAT-4415181
  • published1 Nov 2021
  • disclosed12 Jul 2021

Introduced: 12 Jul 2021

CVE-2021-33037  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade RHEL:8 jws5-tomcat to version 0:9.0.50-3.redhat_00004.1.el8jws or higher.
This issue was patched in RHSA-2021:4861.

NVD Description

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.

Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.

References

CVSS Scores

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