Rapid7 Vulnerability & Exploit Database

Apache Tomcat: Moderate: HTTP/2 request mix-up (CVE-2020-13943)

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Apache Tomcat: Moderate: HTTP/2 request mix-up (CVE-2020-13943)

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
10/13/2020
Created
10/14/2020
Added
10/13/2020
Modified
01/28/2021

Description

If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.

Solution(s)

  • apache-tomcat-upgrade-8_5_58
  • apache-tomcat-upgrade-9_0_38

References

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