CVE-2021-3929CWE-416

A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU

published August 25, 2022

CVSS
—
EPSS
1%
Percentile
51.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00678 · 51.8th percentile
Weakness
CWE-416 · Use After Free
Published
2022-08-25T19:36Z
EPSS history
Timeline
  • 25 AUG 19:36Z
    A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU
    cvelistv5