CVE-2013-1798: The ioapic_read_indirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly...

Security readout for executives and security teams

This flaw affects Linux KVM virtualization hosts. A user inside a guest operating system could trigger improper IOAPIC handling and either expose sensitive host memory or crash the host kernel. The business concern is strongest for shared or externally managed VM environments. Exposure is likely limited to Linux systems running KVM with vulnerable kernel builds, especially kernels through 3.8.4 or affected vendor backports listed by SUSE, Ubuntu, Red Hat, and Mandriva advisories. Non-KVM systems are not indicated by the source bundle. High priority for virtualization platforms with tenant or untrusted guest access. Lower urgency for systems that do not run KVM. Patch during the next controlled kernel maintenance window, faster for shared hosting or cloud-like environments. Mitigation focus: Apply the relevant vendor kernel security update for KVM hosts.; Reboot hosts into the fixed kernel after updating.; Prioritize shared virtualization hosts and hosts running untrusted guest workloads..

Prepared

Jun 24, 2026, 11:46 UTC (UTC+00:00)

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