A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.
Published 2021-03-18 20:15:13
Updated 2023-02-12 23:41:08
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2021-3416

Exploit prediction scoring system (EPSS) score for CVE-2021-3416

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 16 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-3416

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
LOW AV:L/AC:L/Au:N/C:N/I:N/A:P
3.9
2.9
NIST
6.0
MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
1.5
4.0
NIST

CWE ids for CVE-2021-3416

References for CVE-2021-3416

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