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.

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Source ID Title
EUVD EUVD EUVD-2021-27145 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.
Ubuntu USN Ubuntu USN USN-5489-1 QEMU vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 28 Feb 2025 13:45:00 +0000

Type Values Removed Values Added
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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-02-28T13:07:25.655Z

Reserved: 2021-11-05T00:00:00.000Z

Link: CVE-2021-3929

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-08-25T20:15:09.417

Modified: 2025-02-28T13:15:25.913

Link: CVE-2021-3929

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-12-16T00:00:00Z

Links: CVE-2021-3929 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses