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redhatcveRedhat.comRH:CVE-2020-25625
HistorySep 17, 2020 - 6:00 a.m.

CVE-2020-25625

2020-09-1706:00:08
redhat.com
access.redhat.com
12

4.7 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

5.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

14.2%

An infinite loop flaw was found in the USB OHCI controller emulator of QEMU. This flaw occurs while servicing OHCI isochronous transfer descriptors (TD) in the ohci_service_iso_td routine, as it retires a TD if it has passed its time frame. It does not check if the TD was already processed and holds an error code in TD_CC. This issue may happen if the TD list has a loop. This flaw allows a guest user or process to consume CPU cycles on the host, resulting in a denial of service.

4.7 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:M/Au:N/C:N/I:N/A:C

5.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

14.2%