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CVE-2021-43980 The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Tomcat | Versions not published |
References
- lists.apache.org lists.apache.org
- [oss-security] 20220928 CVE-2021-43980: Apache Tomcat: Information disclosure www.openwall.com
- [debian-lts-announce] 20221026 [SECURITY] [DLA 3160-1] tomcat9 security update lists.debian.org
- DSA-5265 www.debian.org
Timeline
- Published
- Last modified
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