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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2018-7540
HistoryFeb 27, 2018 - 7:29 p.m.

CVE-2018-7540

2018-02-2719:29:00
Debian Security Bug Tracker
security-tracker.debian.org
7

6.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

24.9%

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

OSVersionArchitecturePackageVersionFilename
Debian12allxen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5xen_4.8.3+comet2+shim4.10.0+comet3-1+deb9u5_all.deb
Debian11allxen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5xen_4.8.3+comet2+shim4.10.0+comet3-1+deb9u5_all.deb
Debian10allxen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5xen_4.8.3+comet2+shim4.10.0+comet3-1+deb9u5_all.deb
Debian999allxen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5xen_4.8.3+comet2+shim4.10.0+comet3-1+deb9u5_all.deb
Debian13allxen< 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5xen_4.8.3+comet2+shim4.10.0+comet3-1+deb9u5_all.deb

6.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

4.9 Medium

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

24.9%

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