CVE-2020-14394

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

CVSS v3.0 3.2 LOW

3.2^/10

CVSS v3.0 : LOW

V3 Legend

Vector :

Exploitability : 1.5 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1908004	Exploit Issue Tracking Third Party Advisory
https://gitlab.com/qemu-project/qemu/-/issues/646	Exploit Issue Tracking Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:6.1.50:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:33:::::::*
	cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:7.0:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:5.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:a:redhat:openstack_platform:13.0:::::::*
	cpe:2.3:a:redhat:openstack_platform:10.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

Information

Published : 2022-08-17 14:15

Updated : 2023-03-14 17:15

NVD link : CVE-2020-14394

Mitre link : CVE-2020-14394

JSON object : View

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

Products Affected

fedoraproject

extra_packages_for_enterprise_linux
fedora

redhat

enterprise_linux
openstack_platform

qemu

qemu

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3.2 /10