CVE-2014-1447: Race condition in the virNetServerClientStartKeepAlive function in libvirt before 1.2.1 allows remote attac...

Security readout for executives and security teams

CVE-2014-1447 is a denial-of-service flaw in libvirt before 1.2.1. A remote attacker could close a connection at a specific timing point and crash libvirtd, disrupting virtualization management. The source bundle does not show data theft, code execution, or confirmed active exploitation. Exposure is most likely on systems running libvirt before 1.2.1 or unfixed distribution packages, especially where libvirtd accepts remote management connections. Local-only deployments may have lower practical exposure, but a crash can still affect virtualization operations. Treat as a timely infrastructure stability issue for virtualization estates. Prioritize patching externally reachable or centrally managed libvirt hosts, but do not escalate as a breach indicator without additional evidence. Mitigation focus: Apply fixed libvirt packages from the relevant OS vendor advisory.; Upgrade libvirt to a version containing the 1.2.1 fix or later.; Check Ubuntu, Debian, Red Hat, Gentoo, and openSUSE guidance for package-specific fixes..

Prepared

Jun 14, 2026, 14:50 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.