[SECURITY] Fedora 42 Update: varnish-7.6.1-6.fc42

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Fedora Update Notification
FEDORA-2025-525d870026
2025-08-08 00:53:07.923873+00:00
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Name        : varnish
Product     : Fedora 42
Version     : 7.6.1
Release     : 6.fc42
URL         : https://www.varnish-cache.org/
Summary     : High-performance HTTP accelerator
Description :
This is Varnish Cache, a high-performance HTTP accelerator.

Varnish Cache stores web pages in memory so web servers donâ??t have to
create the same web page over and over again. Varnish Cache serves
pages much faster than any application server; giving the website a
significant speed up.

Documentation wiki and additional information about Varnish Cache is
available on: https://www.varnish-cache.org/

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Update Information:

Security: This update includes fixes for CVE-2025-47905 aka VSV00016: A client-
side desync vulnerability can be triggered in Varnish Cache. This vulnerability
can be triggered under specific circumstances involving malformed HTTP/1 chunked
requests.
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ChangeLog:

* Wed Jul 30 2025 Ingvar Hagelund <ingvar@xxxxxxxxxxxxxxxxxx> - 7.6.1-6
- Added security patch for VSV00016 aka CVE-2025-47905, rhbz#2369404
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References:

  [ 1 ] Bug #2369404 - CVE-2025-47905 varnish: request smuggling attacks [fedora-all]
        https://bugzilla.redhat.com/show_bug.cgi?id=2369404
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2025-525d870026' at the command
line. For more information, refer to the dnf documentation available at
http://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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