CVE-2020-25723
LOWQEMU < 5.1.1 - Denial of Service via USB EHCI DMA Memory Map Failure
Title source: llmDescription
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.
References (4)
Core 4
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1898579
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20201218-0004/
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/12/22/1
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
Scores
CVSS v3
3.2
EPSS
0.0004
EPSS Percentile
10.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Details
CWE
CWE-617
Status
published
Products (2)
debian/debian_linux
10.0
qemu/qemu
< 5.1.1
Published
Dec 02, 2020
Tracked Since
Feb 18, 2026