Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 5.1.1 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/12/22/1Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1898579Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20201218-0004/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/22/1Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1898579Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20201218-0004/Third Party Advisory
FAQ
What is CVE-2020-25723?
CVE-2020-25723 is a vulnerability with a CVSS score of 3.2 (LOW). 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 use...
How severe is CVE-2020-25723?
CVE-2020-25723 has been rated LOW with a CVSS base score of 3.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25723?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Debian Debian Linux.