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ubuntucveUbuntu.comUB:CVE-2018-10853
HistorySep 11, 2018 - 12:00 a.m.

CVE-2018-10853

2018-09-1100:00:00
ubuntu.com
ubuntu.com
18

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

27.1%

A flaw was found in the way Linux kernel KVM hypervisor before 4.18
emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check
current privilege(CPL) level while emulating unprivileged instructions. An
unprivileged guest user/process could use this flaw to potentially escalate
privileges inside guest.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-36.39UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-133.159UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1023.23UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1027.30UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1065.75UNKNOWN
ubuntu18.04noarchlinux-azure< 4.15.0-1025.26UNKNOWN
ubuntu14.04noarchlinux-azure< 4.15.0-1030.31~14.04.1UNKNOWN
ubuntu16.04noarchlinux-azure< 4.15.0-1025.26~16.04.1UNKNOWN
ubuntu18.04noarchlinux-azure-edge< 4.15.0-1025.26UNKNOWN
ubuntu16.04noarchlinux-azure-edge< 4.15.0-1025.26~16.04.1UNKNOWN
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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.6 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

27.1%