AZL-10721

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AZL-10721

Summary: CVE-2021-3929 affecting package qemu for versions less than 6.2.0-13

Details: A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.

References: https://nvd.nist.gov/vuln/detail/CVE-2021-3929