CVE-2020-27673

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.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://xenbits.xen.org/xsa/advisory-332.html	Patch Third Party Advisory
https://github.com/torvalds/linux/commit/e99502f76271d6bc4e374fe368c50c67a1fd3070	Patch Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e99502f76271d6bc4e374fe368c50c67a1fd3070	Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202011-06	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/19/6	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:opensuse:leap:15.2:::::::*

Information

Published : 2020-10-22 14:15

Updated : 2022-04-26 09:23

NVD link : CVE-2020-27673

Mitre link : CVE-2020-27673

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

debian

debian_linux

xen

xen

linux

linux_kernel

opensuse

leap

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