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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-08-25T19:36:36

Updated: 2024-08-03T17:09:09.622Z

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

Link: CVE-2021-3929

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2023-11-07T03:38:25.290

Link: CVE-2021-3929

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2021-3929 - Bugzilla