vulnerability
Ubuntu: (Multiple Advisories) (CVE-2019-9511): nginx vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Aug 13, 2019 | Aug 16, 2019 | Aug 18, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Aug 13, 2019
Added
Aug 16, 2019
Modified
Aug 18, 2025
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.
Solutions
ubuntu-pro-upgrade-libnghttp2-14ubuntu-pro-upgrade-nghttp2ubuntu-pro-upgrade-nghttp2-clientubuntu-pro-upgrade-nghttp2-proxyubuntu-pro-upgrade-nghttp2-serverubuntu-pro-upgrade-nginx-commonubuntu-pro-upgrade-nginx-coreubuntu-pro-upgrade-nginx-extrasubuntu-pro-upgrade-nginx-fullubuntu-pro-upgrade-nginx-light
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