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Amazon Linux AMI: CVE-2021-43980: Security patch for tomcat8 (ALAS-2023-1732)

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Amazon Linux AMI: CVE-2021-43980: Security patch for tomcat8 (ALAS-2023-1732)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
09/28/2022
Created
05/05/2023
Added
04/21/2023
Modified
04/21/2023

Description

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

Solution(s)

  • amazon-linux-upgrade-tomcat8

References

  • ALAS-2023-1732
  • CVE-2021-43980

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