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cve[email protected]CVE-2020-27673
HistoryOct 22, 2020 - 9:15 p.m.

CVE-2020-27673

2020-10-2221:15:14
web.nvd.nist.gov
255
cve-2020-27673
linux kernel
xen
denial of service
nvd
cid-e99502f76271

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.2

Confidence

High

EPSS

0

Percentile

14.2%

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.

Affected configurations

NVD
Node
linuxlinux_kernelRange2.6.124.4.244
OR
linuxlinux_kernelRange4.5.04.9.244
OR
linuxlinux_kernelRange4.10.04.14.207
OR
linuxlinux_kernelRange4.15.04.19.155
OR
linuxlinux_kernelRange4.20.05.4.75
OR
linuxlinux_kernelRange5.5.05.9.5
OR
linuxlinux_kernelMatch5.10rc1
Node
debiandebian_linuxMatch9.0
Node
opensuseleapMatch15.1
OR
opensuseleapMatch15.2
Node
xenxenRange4.14.0
VendorProductVersionCPE
linuxlinux_kernel5.10cpe:/o:linux:linux_kernel:5.10:rc1::

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.2

Confidence

High

EPSS

0

Percentile

14.2%