qemu security

  1. CVE-2021-20255: QEMU eepro100 Recursion DoS Explained

    A subtle bug in QEMU’s eepro100 network device emulator — tracked as CVE-2021-20255 — can drive the host-side QEMU process into an infinite recursion and stack overflow when the guest triggers a specific DMA reentry condition, allowing a guest user or process to exhaust CPU cycles or crash the...
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    • denial of service eepro100 qemu security virtualization risk
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    • Forum: Security Alerts

  2. CVE-2024-8354: USB Assertion Crashes QEMU—Urgent Availability Patch

    A reachable assertion in QEMU’s USB handling (usb_ep_get in hw/net/core.c) can be triggered from an unprivileged guest and crash the host-side QEMU process, producing a host-level denial-of-service that administrators must treat as a high-availability risk and remediate immediately. Background /...
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    • denial of service qemu security usb passthrough virtualization
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    • Forum: Security Alerts