CVE-2020-11996 log

Source	CVE Red Hat MITRE NVD Debian Ubuntu SUSE Alpine Mageia CVE Details CIRCL Bugs Arch Linux Red Hat Gentoo SUSE GitHub Lists oss-security full-disclosure bugtraq Misc GitHub code web search
Severity	Medium
Remote	Yes
Type	Denial of service
Description	A denial of service has been found in Apache Tomcat before 9.0.36 and 8.5.56, where a specially crafted sequence of HTTP/2 requests could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

Group	Package	Affected	Fixed	Severity	Status	Ticket
AVG-1197	tomcat8	8.5.55-1	8.5.56-1	Medium	Fixed
AVG-1196	tomcat9	9.0.35-1	9.0.37-1	Medium	Fixed

Date	Advisory	Group	Package	Severity	Type
28 Jun 2020	ASA-202006-16	AVG-1197	tomcat8	Medium	denial of service

References
https://www.openwall.com/lists/oss-security/2020/06/25/6 https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.36 https://github.com/apache/tomcat/commit/9a0231683a77e2957cea0fdee88b193b30b0c976 https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.56 https://github.com/apache/tomcat/commit/c8acd2ab7371e39aeca7c306f3b5380f00afe552

References

https://www.openwall.com/lists/oss-security/2020/06/25/6
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.36
https://github.com/apache/tomcat/commit/9a0231683a77e2957cea0fdee88b193b30b0c976
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.56
https://github.com/apache/tomcat/commit/c8acd2ab7371e39aeca7c306f3b5380f00afe552