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Debian: CVE-2019-9511: nghttp2, nginx, nodejs -- security update

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Debian: CVE-2019-9511: nghttp2, nginx, nodejs -- security update

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
08/13/2019
Created
08/27/2019
Added
08/26/2019
Modified
08/07/2020

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.

Solution(s)

  • debian-upgrade-nghttp2
  • debian-upgrade-nginx
  • debian-upgrade-nodejs

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