VDB
DEBIAN-CVE-2019-9511
DEBIAN-CVE-2019-9511
PUBLISHED
CVSS 7.5 HIGH
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.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | nginx | 0, 0, 0 |
| Debian:12 | nginx | 0, 0, 0 |
| Debian:11 | nodejs | 0, 0, 0 |
| Debian:12 | nodejs | 0, 0, 0 |
| Debian:11 | nginx | 0, 0, 0 |
| Debian:13 | nodejs | 0, 0, 0 |
| Debian:12 | nghttp2 | 0, 0, 0 |
| Debian:11 | nghttp2 | 0, 0, 0 |
| Debian:14 | nodejs | 0, 0, 0 |
| Debian:14 | nghttp2 | 0, 0, 0 |
| Debian:14 | nginx | 0, 0, 0 |
| Debian:13 | nghttp2 | 0, 0, 0 |
Exploit Intelligence
- based on nginx 1.19.5 to fix for CVE-2018-16843, CVE-2018-16844, CVE-2019-9511, CVE-2019-9513, and CVE-2019-9516 (github-poc-repo)
- harley-ghostie/CVE-2019-9511_Priority-Churn-Data-Dribble (github-poc)
- based on nginx 1.19.5 to fix for CVE-2018-16843, CVE-2018-16844, CVE-2019-9511, CVE-2019-9513, and CVE-2019-9516 (github-poc)
- cve_db.json (github-poc)
- sec-build.yaml (github-poc)
- GenerationConfig.java (github-poc)
- SelfAdaptationGenerationConfig.java (github-poc)
Timeline
- Aug 13, 2019 CVE Published
- Apr 28, 2026 CVE Updated