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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-36.39 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-133.159 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1023.23 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1027.30 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1065.75 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure | < 4.15.0-1025.26 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-azure | < 4.15.0-1030.31~14.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1025.26~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-edge | < 4.15.0-1025.26 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure-edge | < 4.15.0-1025.26~16.04.1 | UNKNOWN |
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%