Denial of Service Vulnerability in QEMU Virtio-FS Shared File System Daemon

CVE-2020-10717

What is CVE-2020-10717?

A weakness has been identified in the QEMU Virtio-FS shared file system daemon (virtiofsd) that can lead to a denial of service. Specifically, if a guest operating system opens the maximum number of file descriptors for directories shared via virtio-fs, it can exhaust resources on the host system. This can prevent other processes from accessing the shared file system, effectively causing service interruptions. Administrators should take necessary precautions to monitor and limit file descriptors to mitigate potential exploitation of this vulnerability.

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