Brocade Security Advisory
The handling of an HTTP/2 GOAWAY frame for a connection did not close streams associated with that connection that were currently waiting for a WINDOW_UPDATE before allowing the application to write more data. These waiting streams each consumed a thread. A malicious client could therefore construct a series of HTTP/2 requests that would consume all available processing threads.
Brocade is investigating its product lines to determine which products may be affected by this vulnerability and the impact on each affected product.
Products Confirmed Not Vulnerable
Brocade 5400 vRouter, Brocade 5600 vRouter, Brocade FastIron OS, Brocade NetIron OS, Brocade ServerIron ADX, Brocade Services Director, Brocade SLX-OS, Brocade Virtual ADX, Brocade Virtual Traffic Manager, and Brocade Virtual Web Application Firewall are confirmed not affected by this vulnerability.
There are no workarounds that address this vulnerability.
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