tomcat: Infinite loop while reading an unexpected TLS packet when using OpenSSL JSSE engine

🗓️ 06 Oct 2021 14:22:25Reported by RedHatType

redhat🔗 access.redhat.com👁 4 Views

Tomcat with non blocking IO OpenSSL can loop on a crafted TLS packet, causing denial of service.

Reporter	Title	Published	Views	Family All 153
IBM Security Bulletins	Security Bulletin: Multiple vulnerabilities in Apache Tomcat affects App Connect Professional.	14 Dec 202111:38	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerabilities in Apache Tomcat, Apache Commons FileUpload and Apache Axis might affect IBM Storage Copy Data Management	22 Mar 202416:05	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Rational Build Forge is affected by Apache Tomcat version used in it. (CVE-2021-41079)	7 Jul 202214:17	–	ibm
IBM Security Bulletins	Security Bulletin: IBM® Engineering Requirements Management DOORS/DWA vulnerabilities addressed in 9.7.2.8	18 Oct 202407:56	–	ibm
IBM Security Bulletins	Security Bulletin: IBM UrbanCode Build is affected by CVE-2021-41079	9 Feb 202216:25	–	ibm
IBM Security Bulletins	Security Bulletin: IBM UrbanCode Release is affected by CVE-2021-41079	25 Jan 202207:57	–	ibm
IBM Security Bulletins	Security Bulletin: Cloud Pak for Security contains packages that have multiple vulnerabilities	1 Apr 202216:38	–	ibm
IBM Security Bulletins	Security Bulletin: Vulnerabilities in Spring, Tomcat, Jackson, sudo, and Linux kernel can affect IBM Spectrum Protect Plus	20 Mar 202418:36	–	ibm
IBM Security Bulletins	Security Bulletin: IBM Data Risk Manager is affected by multiple vulnerabilities	11 Oct 202118:12	–	ibm
Tenable Nessus	Apache Tomcat < 10.0.4 Vulnerability	15 Sep 202100:00	–	nessus

Vulners

Node

AND

redhat jboss_enterprise_web_serverRange<5.5

redhat enterprise_linux

Source	Link
access	www.access.redhat.com/security/cve/CVE-2021-41079
bugzilla	www.bugzilla.redhat.com/show_bug.cgi
lists	www.lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E
nvd	www.nvd.nist.gov/vuln/detail/CVE-2021-41079
tomcat	www.tomcat.apache.org/security-10.html
tomcat	www.tomcat.apache.org/security-8.html
tomcat	www.tomcat.apache.org/security-9.html
cve	www.cve.org/CVERecord

04 Aug 2026 21:36Current

7.1High risk

Vulners AI Score7.1

CVSS 24.3

CVSS 3.17.5

EPSS0.07182

Tomcat OpenSSL Non blocking IO Infinite loop Denial of service TLS