CVE-2020-27173

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
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.
Overview
  • CVE ID
  • CVE-2020-27173
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-10-16T04:15:12
  • Last Modified Date
  • 2021-07-21T11:39:23
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:vm-superio_project:vm-superio:*:*:*:*:*:*:*:* 1 OR 0.1.1
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/rust-vmm/vm-superio/pull/19 Patch Third Party Advisory
https://github.com/rust-vmm/vm-superio/issues/17 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-27173
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27173
History
Created Old Value New Value Data Type Notes
2022-05-10 07:04:14 Added to TrackCVE
2022-12-05 00:10:00 2020-10-16T04:15Z 2020-10-16T04:15:12 CVE Published Date updated
2022-12-05 00:10:00 2021-07-21T11:39:23 CVE Modified Date updated
2022-12-05 00:10:00 Analyzed Vulnerability Status updated