Description
A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.
Metrics
CVSS 3.1 3.2/10
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | QEMU | qemu 5.2.0 |
References
- http://www.openwall.com/lists/oss-security/2020/12/22/1Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1898579Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20201218-0004/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/22/1Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1898579Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20201218-0004/Third Party Advisory
Timeline
- Published
- Dec 2, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Modified