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Xen

155 known vulnerabilities.

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  • Low 2.9

    x86: incomplete IBPB for vCPU isolation

    In the context switch logic Xen attempts to skip an IBPB in the case of a vCPU returning to a CPU on which it was the previous vCPU to run. While safe for Xen's isolation between vCPUs, this prevents the guest kernel correctly isolating between tasks. Conside…

  • Low 3.8

    Xapi: Metadata injection attack against backup/restore functionality

    For a brief summary of Xapi terminology, see: https://xapi-project.github.io/xen-api/overview.html#object-model-overview Xapi contains functionality to backup and restore metadata about Virtual Machines and Storage Repositories (SRs). The metadata itself is s…

  • Low 3.3

    arm32: The cache may not be properly cleaned/invalidated (take two)

    Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Un…

  • Low 3.3

    arm32: The cache may not be properly cleaned/invalidated

    Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Un…

  • Low 3.3

    Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18…