CVE-2020-27173

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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/rust-vmm/vm-superio/issues/17	Third Party Advisory
https://github.com/rust-vmm/vm-superio/pull/19	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2020-10-16 04:15

Updated : 2024-02-04 21:23

NVD link : CVE-2020-27173

Mitre link : CVE-2020-27173

CVE.ORG link : CVE-2020-27173

JSON object : View

Products Affected

vm-superio_project

vm-superio

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

{"id": "CVE-2020-27173", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2020-10-16T04:15:12.070", "references": [{"url": "https://github.com/rust-vmm/vm-superio/issues/17", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/rust-vmm/vm-superio/pull/19", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "En vm-superio versiones anteriores a 0.1.1, el FIFO de la consola serial puede crecer hasta un uso de memoria ilimitado cuando los datos son enviados hacia la fuente de entrada (es decir, entrada est\u00e1ndar). Este comportamiento no pueden ser reproducido desde el lado del invitado. Cuando no existe una limitaci\u00f3n de velocidad, el host puede estar sujeto a la presi\u00f3n de la memoria, impactando a todas las dem\u00e1s m\u00e1quinas virtuales que se ejecutan en el mismo host"}], "lastModified": "2021-07-21T11:39:23.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:vm-superio_project:vm-superio:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "908B5793-006A-4E62-8032-7CA429ABF59E", "versionEndExcluding": "0.1.1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}