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Fedora 42: python-h11 2025-d1fffcc084 critical: chunked encoding issue

Backport upstream fix for CVE-2025-43859. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2025-d1fffcc084 2025-05-11 01:15:12.231715+00:00 -------------------------------------------------------------------------------- Name : python-h11 Product : Fedora 42 Version : 0.14.0 Release : 7.fc42 URL : https://github.com/python-hyper/h11 Summary : A pure-Python, bring-your-own-I/O implementation of HTTP/1.1 Description : This is a little HTTP/1.1 library written from scratch in Python, heavily inspired by hyper-h2. It is a "bring-your-own-I/O" library; h11 contains no IO code whatsoever. This means you can hook h11 up to your favorite network API, and that could be anything you want: synchronous, threaded, asynchronous, or your own implementation of RFC 6214 -- h11 will not judge you. This also means that h11 is not immediately useful out of the box: it is a toolkit for building programs that speak HTTP, not something that could directly replace requests or twisted.web or whatever. But h11 makes it much easier to implement something like requests or twisted.web. -------------------------------------------------------------------------------- Update Information: Backport upstream fix for CVE-2025-43859 -------------------------------------------------------------------------------- ChangeLog: * Fri May 2 2025 Robby Callicotte - 0.14.0-7 - Backport upstream fix for CVE-2025-43859 -------------------------------------------------------------------------------- References: [ 1 ] Bug #2362287 - CVE-2025-43859 python-h11: h11 accepts some malformed Chunked-Encoding bodies [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2362287 -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-d1fffcc084' at the command line. For moreinformation, 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/security/ -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list -- This email address is being protected from spambots. You need JavaScript enabled to view it. To unsubscribe send an email to This email address is being protected from spambots. You need JavaScript enabled to view it. Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it. Do not reply to spam, report it: . Update for python-h11 in Fedora 42 includes backport of upstream fix addressing critical CVE-2025-43859 that impacts chunked encoding functionality.. Fedora Update, Python HTTP Library, CVE-2025-43859, Security Update, DNF Upgrade. . Severity: Critical. LinuxSecurity.com Team

May 11, 2025 •Critical Fedora