A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
History

Wed, 23 Apr 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-09-13T19:18:14.000Z

Updated: 2025-04-23T17:11:03.254Z

Reserved: 2022-08-23T00:00:00.000Z

Link: CVE-2022-2962

cve-icon Vulnrichment

Updated: 2024-08-03T00:53:00.431Z

cve-icon NVD

Status : Modified

Published: 2022-09-13T20:15:09.640

Modified: 2025-04-23T18:15:48.600

Link: CVE-2022-2962

cve-icon Redhat

Severity : Low

Publid Date: 2022-08-23T00:00:00Z

Links: CVE-2022-2962 - Bugzilla