CVE-2013-1797: Use-after-free vulnerability in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 allows guest OS users...

Security readout for executives and security teams

CVE-2013-1797 is a Linux KVM host bug where a user inside a guest VM could trigger host memory corruption. The stated impact is host denial of service, with unspecified other impact possible. This matters most for virtualization hosts that run untrusted or multi-tenant guest workloads. Exposure is likely limited to Linux systems using KVM with vulnerable kernel builds or vendor packages. Hosts without KVM, without guest workloads, or already updated through vendor advisories are less likely exposed. Vendor backports mean version checks must use distribution package advisories, not only upstream kernel numbers. Treat this as high priority for KVM virtualization infrastructure, especially shared hosting or customer VM environments. The business risk is host instability and potential broader impact from guest-controlled activity. Non-KVM Linux servers should be deprioritized after confirming they are not exposed. Mitigation focus: Apply the relevant vendor kernel security update for affected KVM hosts.; Reboot hosts into the fixed kernel after updating packages.; Prioritize hosts running untrusted, shared, or customer-controlled 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.