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Fedora 42: cri-o1.33 Critical Denial of Service Fix 2025-172ba9078e

fedora
Calendar Grey October 11, 2025
Dist Fedora Esm H88
Update for Fedora 42 resolves multiple issues in cri-o1.33 with urgent security patches addressing denial of service threats.
Update to release v1.33.5 Resolves: rhbz#2333357, rhbz#2375096, rhbz#2398408, rhbz#2398663, rhbz#2399065, rhbz#2399339 Upstream fixes

Summary

Open Container Initiative-based implementation of Kubernetes Container Runtime

Interface.

Update Information:

Update to release v1.33.5 Resolves: rhbz#2333357, rhbz#2375096, rhbz#2398408, rhbz#2398663, rhbz#2399065, rhbz#2399339 Upstream fixes

Topics%20covered

Topics Covered

security advisory denial of service fedora cri-o cve-2025-4437 open container initiative

Change Log

* Thu Oct 2 2025 Bradley G Smith - 1.33.5-1 - Update to release v1.33.5 - Resolves: rhbz#2333357, rhbz#2375096, rhbz#2398408, rhbz#2398663, rhbz#2399065, rhbz#2399339 - Upstream fixes

References


[ 1 ] Bug #2333357 - cri-o-1.34.1 is available https://bugzilla.redhat.com/show_bug.cgi?id=2333357 [ 2 ] Bug #2375096 - CVE-2025-4437 cri-o1.33: Large /etc/passwd file may lead to Denial of Service [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2375096 [ 3 ] Bug #2398408 - CVE-2025-47910 cri-o1.33: CrossOriginProtection bypass in net/http [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2398408 [ 4 ] Bug #2398663 - CVE-2025-47910 cri-o1.33: CrossOriginProtection bypass in net/http [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2398663 [ 5 ] Bug #2399065 - CVE-2025-47906 cri-o1.33: Unexpected paths returned from LookPath in os/exec [fedora-41] https://bugzilla.redhat.com/show_bug.cgi?id=2399065 [ 6 ] Bug #2399339 - CVE-2025-47906 cri-o1.33: Unexpected paths returned from LookPath in os/exec [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2399339

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-172ba9078e' 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

Severity
critical
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Name: cri-o1.33
Product: Fedora 42
Version: 1.33.5
Release: 1.fc42
URL: https://github.com/cri-o/cri-o
Summary: Open Container Initiative-based implementation of Kubernetes Container Runtime Interface

Topics%20covered

Topics Covered

security advisory denial of service fedora cri-o cve-2025-4437 open container initiative

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