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CVE PROGRAM SOURCE RECORD3.7 Low

CVE-2021-43980

Apache Tomcat: Information disclosure

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Tomcat

  • 10.1.0-M1 to 10.1.0-M12affected
  • 10.0.0-M1 to 10.0.18affected
  • 9.0.0-M1 to 9.0.60affected
  • 8.5.0 to 8.5.77affected

References