UBUNTU-CVE-2019-9517

Dashboard / Vulnerabilities / UBUNTU-CVE-2019-9517

UBUNTU-CVE-2019-9517

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2019-9517, https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md, https://ubuntu.com/security/notices/USN-4113-1, https://www.cve.org/CVERecord?id=CVE-2019-9517