CVE-2013-6458: Multiple race conditions in the (1) virDomainBlockStats, (2) virDomainGetBlockInf, (3) qemuDomainBlockJobIm...

Security readout for executives and security teams

This flaw can let a remote user with read-only libvirt access crash libvirtd, the virtualization management daemon. It is an availability issue: virtual machines are not described as compromised, but management operations may be disrupted until libvirtd recovers or is restarted. Exposure is most relevant on systems running libvirt before 1.2.1 or older vendor-packaged libvirt builds covered by the listed Ubuntu, Debian, Red Hat, Gentoo, or openSUSE advisories, especially where remote read-only libvirt API access is enabled. Treat as a timely maintenance fix for virtualization platforms, not an emergency internet-wide compromise. Prioritize shared or remotely managed virtualization hosts because service crashes can interrupt operational control. Mitigation focus: Upgrade libvirt to a vendor-fixed package or version 1.2.1 or later.; Review the listed distribution advisories for exact fixed package versions.; Restrict remote libvirt access to trusted administrators until patched..

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.