This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2021-43980 →
DEBIAN-CVE-2021-43980
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 (b...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
tomcat9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.62-1"}]}]
Debian:13
tomcat9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.62-1"}]}]
Debian:14
tomcat9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.62-1"}]}]
References
- advisory security-tracker.debian.org