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[email protected]CVE-2019-3016

HistoryJan 31, 2020 - 8:15 p.m.

CVE-2019-3016

2020-01-3120:15:11

CWE-200

CWE-362

[email protected]

web.nvd.nist.gov

351

linux

kvm

guest

pv tlb

memory read

security vulnerability

amd

intel

nvd

cve-2019-3016

1.9 Low

CVSS2

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

6.2 Medium

CVSS3

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

5.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.5%

JSON

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

Vulners

NVD

Node

linuxlinux_kernelRange≤4.10

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

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