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Apache Tomcat: Important: Request mix-up with h2c (CVE-2021-25122)

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Apache Tomcat: Important: Request mix-up with h2c (CVE-2021-25122)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
03/02/2021
Created
03/03/2021
Added
03/02/2021
Modified
06/08/2021

Description

When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A's request.

Solution(s)

  • apache-tomcat-upgrade-10_0_2
  • apache-tomcat-upgrade-8_5_63
  • apache-tomcat-upgrade-9_0_43

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