VULNERABILITY INTELLIGENCE
CVE-2021-41079
CVSS score7.5 HIGH
EPSS probability7.18%
CISA KEVNot currently listed
Published2021-09-16
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- security@apache.org: CWE-20
- nvd@nist.gov: CWE-835
Primary references
- security@apache.org
- security@apache.org
- security@apache.org — Mailing List, Vendor Advisory
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory