cve/2019/CVE-2019-9511.md

CVE-2019-9511

Description

Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a large amount of data from a specified resource over multiple streams. They manipulate window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

POC

Reference

• https://kb.cert.org/vuls/id/605641/
• https://usn.ubuntu.com/4099-1/
• https://www.oracle.com/security-alerts/cpujan2021.html
• https://www.oracle.com/security-alerts/cpuoct2020.html
• https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/Eldor240/files
• https://github.com/developer3000S/PoC-in-GitHub
• https://github.com/flyniu666/ingress-nginx-0.21-1.19.5
• https://github.com/hectorgie/PoC-in-GitHub
• https://github.com/rmtec/modeswitcher
• https://github.com/vshaliii/DC-4-Vulnhub-Walkthrough