CVE-2021-41079
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.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 7.2% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-835, CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:tomcat
- debian:debian_linux
- netapp:management_services_for_element_software_and_netapp_hci
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-59g9-7gfx-c72p | Maven | org.apache.tomcat:tomcat | >=10.0.0 <10.0.4 | 10.0.4 |
| GHSA-59g9-7gfx-c72p | Maven | org.apache.tomcat:tomcat | >=9.0.0 <9.0.44 | 9.0.44 |
| GHSA-59g9-7gfx-c72p | Maven | org.apache.tomcat:tomcat | >=8.5.0 <8.5.64 | 8.5.64 |
References
- https://lists.apache.org/thread.html/r6b6b674e3f168dd010e67dbe6848b866e2acf26371452fdae313b98a%40%3Cusers.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rb4de81ac647043541a32881099aa6eb5a23f1b7fd116f713f8ab9dbe%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/09/msg00012.html
- https://security.netapp.com/advisory/ntap-20211008-0005/