3.7

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.

Data is provided by the National Vulnerability Database (NVD)
Apache ≫ Tomcat Version >= 8.5.0 <= 8.5.77
Apache ≫ Tomcat Version >= 9.0.0 <= 9.0.60
Apache ≫ Tomcat Version >= 10.0.0 <= 10.0.18
Apache ≫ Tomcat Version10.1.0 Updatemilestone1
Apache ≫ Tomcat Version10.1.0 Updatemilestone10
Apache ≫ Tomcat Version10.1.0 Updatemilestone11
Apache ≫ Tomcat Version10.1.0 Updatemilestone12
Apache ≫ Tomcat Version10.1.0 Updatemilestone2
Apache ≫ Tomcat Version10.1.0 Updatemilestone3
Apache ≫ Tomcat Version10.1.0 Updatemilestone4
Apache ≫ Tomcat Version10.1.0 Updatemilestone5
Apache ≫ Tomcat Version10.1.0 Updatemilestone6
Apache ≫ Tomcat Version10.1.0 Updatemilestone7
Apache ≫ Tomcat Version10.1.0 Updatemilestone8
Apache ≫ Tomcat Version10.1.0 Updatemilestone9
Debian ≫ Debian Linux Version10.0
Debian ≫ Debian Linux Version11.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.22% 0.448
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
134c704f-9b21-4f2e-91b3-4a467353bcc0 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.