CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.2. It may lead to a denial-of-service condition.
CVE
CVE-2021-3929
Severity
HIGH
CVSS
8.2
EPSS
0.66%
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)