CVE-2019-0199

Description

The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

References

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00090.html

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00013.html

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00054.html

http://www.securityfocus.com/bid/107674

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cannounce.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cannounce.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cannounce.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cannounce.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cannounce.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Ccommits.tomee.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cdev.tomcat.apache.org%3E

https://lists.apache.org/thread.html/[email protected]%3Cusers.tomcat.apache.org%3E

https://lists.fedoraproject.org/archives/list/[email protected]/message/NPHQEL5AQ6LZSZD2Y6TYZ4RC3WI7NXJ3/

https://lists.fedoraproject.org/archives/list/[email protected]/message/ZQTZ5BJ5F4KV6N53SGNKSW3UY5DBIQ46/

https://security.netapp.com/advisory/ntap-20190419-0001/

https://support.f5.com/csp/article/K17321505

https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html

Details

Risk Information

CVSS v2

CVSS v3