An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.
Published 2020-08-31 18:15:13
Updated 2022-11-16 14:06:12
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory CorruptionDenial of service

Threat overview for CVE-2020-14364

Top countries where our scanners detected CVE-2020-14364
Top open port discovered on systems with this issue 53
IPs affected by CVE-2020-14364 790,673
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2020-14364!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2020-14364

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 14 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2020-14364

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
4.4
MEDIUM AV:L/AC:M/Au:N/C:P/I:P/A:P
3.4
6.4
NIST
5.0
MEDIUM CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
0.8
3.7
NIST

CWE ids for CVE-2020-14364

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)
  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by:
    • nvd@nist.gov (Primary)
    • secalert@redhat.com (Secondary)

References for CVE-2020-14364

Products affected by CVE-2020-14364

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