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MitreCVE-2020-27173

HistoryOct 16, 2020 - 4:15 a.m.

CVE-2020-27173

2020-10-1604:15:12

CWE-770

mitre

web.nvd.nist.gov

cve-2020-27173

vm-superio

memory usage

security vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

43.1%

JSON

In vm-superio before 0.1.1, the serial console FIFO can grow to unlimited memory usage when data is sent to the input source (i.e., standard input). This behavior cannot be reproduced from the guest side. When no rate limiting is in place, the host can be subject to memory pressure, impacting all other VMs running on the same host.

Affected configurations

Nvd

Node

vm-superio_projectvm-superioRange<0.1.1

VendorProductVersionCPE
vm-superio_projectvm-superio*cpe:2.3:a:vm-superio_project:vm-superio:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
vm-superio_project	vm-superio	*	cpe:2.3:a:vm-superio_project:vm-superio::::::::

References

github.com/rust-vmm/vm-superio/issues/17

github.com/rust-vmm/vm-superio/pull/19

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

43.1%

JSON

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