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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2020-27672
HistoryOct 22, 2020 - 9:15 p.m.

CVE-2020-27672

2020-10-2221:15:13
Debian Security Bug Tracker
security-tracker.debian.org
8

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

14.2%

JSON

An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.

OSVersionArchitecturePackageVersionFilename
Debian12allxen< 4.14.0+80-gd101b417b7-1xen_4.14.0+80-gd101b417b7-1_all.deb
Debian11allxen< 4.14.0+80-gd101b417b7-1xen_4.14.0+80-gd101b417b7-1_all.deb
Debian999allxen< 4.14.0+80-gd101b417b7-1xen_4.14.0+80-gd101b417b7-1_all.deb
Debian13allxen< 4.14.0+80-gd101b417b7-1xen_4.14.0+80-gd101b417b7-1_all.deb

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6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

14.2%

JSON
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