CVE-2011-1750: Multiple heap-based buffer overflows in the virtio-blk driver (hw/virtio-blk.c) in qemu-kvm 0.14.0 allow lo...

Security readout for executives and security teams

This issue affects the virtual disk driver in qemu-kvm 0.14.0. A user inside a guest VM could send misaligned disk I/O that crashes the guest and may cross a privilege boundary. It matters most where untrusted tenants or users can run code inside VMs. Likely exposure is limited to virtualization hosts running qemu-kvm 0.14.0 or downstream packages carrying the vulnerable virtio-blk code, with guests using virtio block devices. Multi-tenant virtualization has higher business risk than single-user lab systems. Treat this as a high-priority legacy virtualization risk where affected hosts still exist. It is not presented as internet-exposed or actively exploited, but it concerns the guest-to-host trust boundary, which is important for tenant isolation and service continuity. Mitigation focus: Review Debian, Red Hat, Ubuntu, SUSE, or relevant vendor advisories for fixed qemu-kvm packages.; Apply vendor-provided qemu-kvm or QEMU security updates on affected virtualization hosts.; Prioritize hosts running untrusted or multi-tenant guest workloads..

Prepared

Jun 24, 2026, 12:34 UTC (UTC+00:00)

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