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Red Hat: CVE-2019-9511: CVE-2019-9511 HTTP/2: large amount of data requests leads to denial of service (Multiple Advisories)

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Red Hat: CVE-2019-9511: CVE-2019-9511 HTTP/2: large amount of data requests leads to denial of service (Multiple Advisories)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
08/13/2019
Created
09/12/2019
Added
09/11/2019
Modified
11/27/2024

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)

  • redhat-upgrade-libnghttp2
  • redhat-upgrade-libnghttp2-debuginfo
  • redhat-upgrade-libnghttp2-devel
  • redhat-upgrade-nghttp2
  • redhat-upgrade-nghttp2-debuginfo
  • redhat-upgrade-nghttp2-debugsource
  • redhat-upgrade-nginx
  • redhat-upgrade-nginx-all-modules
  • redhat-upgrade-nginx-debuginfo
  • redhat-upgrade-nginx-debugsource
  • redhat-upgrade-nginx-filesystem
  • redhat-upgrade-nginx-mod-http-image-filter
  • redhat-upgrade-nginx-mod-http-image-filter-debuginfo
  • redhat-upgrade-nginx-mod-http-perl
  • redhat-upgrade-nginx-mod-http-perl-debuginfo
  • redhat-upgrade-nginx-mod-http-xslt-filter
  • redhat-upgrade-nginx-mod-http-xslt-filter-debuginfo
  • redhat-upgrade-nginx-mod-mail
  • redhat-upgrade-nginx-mod-mail-debuginfo
  • redhat-upgrade-nginx-mod-stream
  • redhat-upgrade-nginx-mod-stream-debuginfo
  • redhat-upgrade-nodejs
  • redhat-upgrade-nodejs-debuginfo
  • redhat-upgrade-nodejs-debugsource
  • redhat-upgrade-nodejs-devel
  • redhat-upgrade-nodejs-devel-debuginfo
  • redhat-upgrade-nodejs-docs
  • redhat-upgrade-nodejs-nodemon
  • redhat-upgrade-nodejs-packaging
  • redhat-upgrade-npm

References

  • CVE-2019-9511
  • RHSA-2019:2692
  • RHSA-2019:2799
  • RHSA-2019:2925

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