CVE-2020-27661

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.

• CWE-369

• https://bugzilla.redhat.com/show_bug.cgi?id=1890653Issue Tracking, Patch, Third Party Advisory
• https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03
• https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.htmlMailing List, Patch, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210720-0010/Third Party Advisory
• https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html
• https://bugzilla.redhat.com/show_bug.cgi?id=1890653Issue Tracking, Patch, Third Party Advisory
• https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03
• https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.htmlMailing List, Patch, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20210720-0010/Third Party Advisory
• https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html

Published

Jun 2, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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