Fedora 43: Essential Nebula Update Addresses Performance and Security Flaws
fedora
December 18, 2025
Upstream update
Summary
A scalable overlay networking tool with a focus on performance, simplicity and
security.
Update Information:
Upstream update
Topics Covered
Change Log
* Tue Dec 9 2025 Fabio Alessandro Locati
References
[ 1 ] Bug #2408329 - CVE-2025-58189 nebula: go crypto/tls ALPN negotiation error contains attacker controlled information [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2408329
[ 2 ] Bug #2409802 - CVE-2025-61723 nebula: Quadratic complexity when parsing some invalid inputs in encoding/pem [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2409802
[ 3 ] Bug #2410752 - CVE-2025-58185 nebula: Parsing DER payload can cause memory exhaustion in encoding/asn1 [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2410752
[ 4 ] Bug #2411648 - CVE-2025-58188 nebula: Panic when validating certificates with DSA public keys in crypto/x509 [fedora-43]
https://bugzilla.redhat.com/show_bug.cgi?id=2411648
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-bf07d21f3e' 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
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Name: nebula
Product: Fedora 43
Version: 1.10.0
Release: 2.fc43
Summary: A scalable overlay networking tool with a focus on performance, simplicity and security
Topics Covered
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