LOW 3.2 Microsoft

CVE-2021-3392

A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.

Microsoft Security Update 2021-Mar: A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.

Affected Products

References

Published: 2021-03-09 · Source: Microsoft · Feed updated: 2026-08-20
This low severity vulnerability with a CVSS score of 3.2 was published on 2021-03-09 via Microsoft. Affected: qemu-kvm-4.2.0-29.cm1.x86_64.rpm on CBL Mariner 1.0 x64, qemu-img-4.2.0-29.cm1.x86_64.rpm on CBL Mariner 1.0 x64, qemu-kvm-4.2.0-29.cm1.aarch64.rpm on CBL Mariner 1.0 ARM and 1 more.
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