AZL-9121

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AZL-9121

Summary: CVE-2021-3748 affecting package qemu for versions less than 6.2.0-2

Details: A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.

References: https://nvd.nist.gov/vuln/detail/CVE-2021-3748