CVE-2019-10072: The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and…

high7.5CVSS 3.0

AVNACLPRNUINSUCNINAH

The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
apache	tomcat	—	—
apache	tomcat	8.5.0 – 8.5.40	—
apache	tomcat	9.0.1 – 9.0.19	—
debian	tomcat9	< tomcat9 9.0.22-1 (bookworm)	tomcat9 9.0.22-1 (bookworm)

CVSS provenance

nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

ghsa7.5HIGH

osv7.5HIGH