HTTP Request Smuggling Affecting tomcat-lib package, versions <9.0.36-3.84.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
15.54% (96th percentile)

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  • Snyk IDSNYK-SLES150-TOMCATLIB-2655035
  • published14 Apr 2022
  • disclosed16 Nov 2021

Introduced: 16 Nov 2021

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

How to fix?

Upgrade SLES:15.0 tomcat-lib to version 9.0.36-3.84.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-lib package and not the tomcat-lib package as distributed by SLES. See How to fix? for SLES:15.0 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

version 3.1