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CVE-2020-25723

Public on 2020-12-02
Modified on 2021-06-22
Description

A reachable assertion vulnerability was found in the USB EHCI emulation code of QEMU. This issue occurs while processing USB requests due to missed handling of DMA memory map failure. This flaw allows a malicious privileged user within the guest to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Severity
Low
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CVSS v3 Base Score
3.2
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core qemu 2021-06-16 20:37 ALAS2-2021-1671

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
NVD CVSSv2 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L