Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 5.1.1 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1890653Issue TrackingPatchThird Party Advisory
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715
- https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.htmlMailing ListPatchThird 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 TrackingPatchThird Party Advisory
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=bea2a9e3e00b275dc40cfa09c760c715
- https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg04263.htmlMailing ListPatchThird 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
FAQ
What is CVE-2020-27661?
CVE-2020-27661 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 th...
How severe is CVE-2020-27661?
CVE-2020-27661 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-27661?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu.