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cveOracleCVE-2019-3016
HistoryJan 31, 2020 - 8:15 p.m.

CVE-2019-3016

2020-01-3120:15:11
CWE-200
CWE-362
oracle
web.nvd.nist.gov
364
linux
kvm
guest
pv tlb
memory read
security vulnerability
amd
intel
nvd
cve-2019-3016

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.3

Confidence

High

EPSS

0.001

Percentile

19.5%

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.

Affected configurations

Nvd
Vulners
Node
linuxlinux_kernelRange4.16
OR
linuxlinux_kernelMatch4.10
VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel4.10cpe:2.3:o:linux:linux_kernel:4.10:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "linux_kernel",
    "vendor": "linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.10 to 5.6"
      }
    ]
  }
]

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

6.2

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.3

Confidence

High

EPSS

0.001

Percentile

19.5%