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CVE-2021-41079

nvd nist
Published: Sep 16, 2021Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.

Affected (7)

1 product
Tomcat
1 product
Debian Linux
1 product
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Apache
From 10.0.0 to 10.0.2
From 8.5.0 to 8.5.64
From 9.0.0 to 9.0.44
Configuration B
3 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Version 10.0
Version 11.0
Version 9.0
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
All versions

References (12)

Source: security@apache.org
Mailing ListThird Party Advisory
Source: security@apache.org
Third Party Advisory
Source: security@apache.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.