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Fedora Update Notification
FEDORA-2021-3ab4512c98
2021-08-26 21:09:57.867706
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Name        : haproxy
Product     : Fedora 33
Version     : 2.2.16
Release     : 1.fc33
URL         : https://www.haproxy.org/
Summary     : HAProxy reverse proxy for high availability environments
Description :
HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high
availability environments. Indeed, it can:
 - route HTTP requests depending on statically assigned cookies
 - spread load among several servers while assuring server persistence
   through the use of HTTP cookies
 - switch to backup servers in the event a main one fails
 - accept connections to special ports dedicated to service monitoring
 - stop accepting connections without breaking existing ones
 - add, modify, and delete HTTP headers in both directions
 - block requests matching particular patterns
 - report detailed status to authenticated users from a URI
   intercepted from the application

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Update Information:

Security fix for CVE-2021-39240, CVE-2021-39241, CVE-2021-39242
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ChangeLog:

* Wed Aug 18 2021 Ryan O'Hara  - 2.2.16-1
- Update to 2.2.16
- Fix domain parts in :scheme and :path fields (CVE-2021-39240, #1995105)
- Fix spaces in the :method field (CVE-2021-39241, #1995109)
- Fix mismatch between :authority and Host fields (CVE-2021-39242, #1995113)
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References:

  [ 1 ] Bug #1995105 - CVE-2021-39240 haproxy: does not ensure that the scheme and path portions of a URI have the expected characters [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1995105
  [ 2 ] Bug #1995109 - CVE-2021-39241 haproxy: an HTTP method name may contain a space followed by the name of a protected resource [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1995109
  [ 3 ] Bug #1995113 - CVE-2021-39242 haproxy: it can lead to a situation with an attacker-controlled HTTP Host header because a mismatch between Host and authority is mishandled [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=1995113
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-3ab4512c98' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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