CVE-2021-43980
- Source
- https://cve.org/CVERecord?id=CVE-2021-43980
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43980.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-43980
- Aliases
- Downstream
- Related
- Published
- 2022-09-28T14:15:09.880Z
- Modified
- 2026-02-11T14:34:56.729479Z
- Severity
-
- 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- http://www.openwall.com/lists/oss-security/2022/09/28/1
- https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3
- https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html
- https://www.debian.org/security/2022/dsa-5265
- http://www.openwall.com/lists/oss-security/2022/09/28/1
- https://lists.apache.org/thread/3jjqbsp6j88b198x5rmg99b1qr8ht3g3
- https://lists.debian.org/debian-lts-announce/2022/10/msg00029.html