VDB
DEBIAN-CVE-2021-43980
DEBIAN-CVE-2021-43980
PUBLISHED
CVSS 3.700000047683716 LOW
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.
Risk Scores
CVSS 3.1
3.700000047683716
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | tomcat9 | 0, 0, 0 |
| Debian:14 | tomcat9 | 0, 0, 0 |
| Debian:11 | tomcat9 | 0, 9.0.43-1, 9.0.43-2~deb11u1 |
| Debian:12 | tomcat9 | 0, 0, 0 |
Timeline
- Sep 28, 2022 CVE Published
- Apr 28, 2026 CVE Updated