Published: 02/06/2021 Updated: 07/11/2023

CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9

CVSS v3 Base Score: 6.5 | Impact Score: 4 | Exploitability Score: 2

VMScore: 187

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB host controller emulation of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service.

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Debian Bug report logs - #972864 qemu: CVE-2020-27661: divide by zero in dwc2_handle_packet() in hw/usb/hcd-dwc2c Package: src:qemu; Maintainer for src:qemu is Debian QEMU Team <pkg-qemu-devel@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sun, 25 Oct 2020 13:18:01 UTC Severity ...

CWE-369 https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html https://bugzilla.redhat.com/show_bug.cgi?id=1890653 https://security.netapp.com/advisory/ntap-20210720-0010/https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972864 https://nvd.nist.gov

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CVE-2020-27661

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