{"id":"CVE-2020-27661","aliases":["ALPINE-CVE-2020-27661","BELL-CVE-2020-27661","DEBIAN-CVE-2020-27661","EUVD-2020-20168","GHSA-pwg2-p5wp-g395"],"status":"published","title":"A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB...","description":"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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00314,"percentile":0.24669,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-369"],"published":"2021-06-02T15:25:19Z","modified":"2026-11-03T06:32:25Z","fixes":[{"ecosystem":"Alpine:v3.16","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"qemu","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"qemu","fixed_in":["1:5.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"qemu","fixed_in":["1:5.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"qemu","fixed_in":["1:5.2+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.16","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.2+dfsg-1"}]}]}],"products":[{"vendor":"qemu","product":"qemu"}],"references":[{"url":"https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.html","tags":["x_refsource_MISC","x_transferred","Mailing List","Patch","Third Party Advisory","fix"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1890653","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1770368.html","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715b8753e03","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://security.netapp.com/advisory/ntap-20210720-0010/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-27661"},{"url":"https://git.qemu.org/?p=qemu.git;a=commit;h=bea2a9e3e00b275dc40cfa09c760c715b8753e03"},{"url":"https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1770368.html"},{"url":"https://github.com/advisories/GHSA-pwg2-p5wp-g395"},{"url":"https://security.alpinelinux.org/vuln/CVE-2020-27661","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2020-27661","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-27661","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2020-27661","description":"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.","status":"published","published":"2021-06-02T15:25:19Z","modified":"2024-08-04T16:18:45.773Z","updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20168","description":"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.","status":"published","published":"2021-06-02T15:25:19Z","modified":"2024-08-04T16:18:45Z","updated_at":"2026-11-03T03:07:12.435876Z"}],"ghsa":[{"id":"GHSA-pwg2-p5wp-g395","title":"A divide-by-zero issue was found in dwc2_handle_packet in hw/usb/hcd-dwc2.c in the hcd-dwc2 USB...","description":"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.","status":"published","published":"2022-05-24T19:03:51Z","modified":"2023-01-29T05:06:50Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-369"],"updated_at":"2026-11-02T14:46:06.412268Z"}],"nvd":[{"id":"CVE-2020-27661","description":"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.","status":"published","published":"2021-06-02T16:15:08.32Z","modified":"2026-06-17T03:09:27.427Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-369"],"updated_at":"2026-11-02T14:06:43.288951Z"}],"osv":[{"id":"ALPINE-CVE-2020-27661","description":"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.","status":"published","published":"2021-06-02T16:15:08.32Z","modified":"2026-11-03T06:32:25.377735837Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T07:17:57.723967Z"},{"id":"BELL-CVE-2020-27661","title":"CVE-2020-27661 does not affect BellSoft software","status":"withdrawn","published":"2023-08-31T12:15:24.412692Z","modified":"2026-01-26T09:47:32.214304Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:15.925958Z"},{"id":"CVE-2020-27661","description":"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.","status":"published","published":"2021-06-02T16:15:08.32Z","modified":"2026-03-15T14:39:07.626661Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:16.248747Z"},{"id":"DEBIAN-CVE-2020-27661","description":"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.","status":"published","published":"2021-06-02T16:15:08.32Z","modified":"2026-10-26T12:02:41.654793504Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:33.729655Z"}]}}