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Red Hat: CVE-2021-33193: CVE-2021-33193 httpd: Request splitting via HTTP/2 method injection and mod_proxy (Multiple Advisories)

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Red Hat: CVE-2021-33193: CVE-2021-33193 httpd: Request splitting via HTTP/2 method injection and mod_proxy (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
08/16/2021
Created
05/14/2022
Added
05/13/2022
Modified
12/15/2023

Description

A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.

Solution(s)

  • redhat-upgrade-httpd
  • redhat-upgrade-httpd-debuginfo
  • redhat-upgrade-httpd-debugsource
  • redhat-upgrade-httpd-devel
  • redhat-upgrade-httpd-filesystem
  • redhat-upgrade-httpd-manual
  • redhat-upgrade-httpd-tools
  • redhat-upgrade-httpd-tools-debuginfo
  • redhat-upgrade-mod_http2
  • redhat-upgrade-mod_http2-debuginfo
  • redhat-upgrade-mod_http2-debugsource
  • redhat-upgrade-mod_ldap
  • redhat-upgrade-mod_ldap-debuginfo
  • redhat-upgrade-mod_md
  • redhat-upgrade-mod_md-debuginfo
  • redhat-upgrade-mod_md-debugsource
  • redhat-upgrade-mod_proxy_html
  • redhat-upgrade-mod_proxy_html-debuginfo
  • redhat-upgrade-mod_session
  • redhat-upgrade-mod_session-debuginfo
  • redhat-upgrade-mod_ssl
  • redhat-upgrade-mod_ssl-debuginfo

References

  • CVE-2021-33193
  • RHSA-2022:1915

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