CVE-2019-9517 — Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer …
Published: 2019-08-13 · CVSS: 7.5 · CVSS 3.0
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7