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 (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.

Link	Resource
https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/09/28/1	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html	Mailing List Third Party Advisory
https://www.debian.org/security/2022/dsa-5265	Third Party Advisory

Configuration 1

cpe:2.3:a:apache:tomcat:10.1.0:milestone3:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone4:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone5:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone1:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone2:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone7:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone8:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone9:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone6:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone10:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone11:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:10.1.0:milestone12:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

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Published : 2022-09-28 02:15

Updated : 2022-11-10 04:00

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NVD link : CVE-2021-43980

Mitre link : CVE-2021-43980

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CWE-362