CVE-2020-27339

CVSS V2 High 7.2 CVSS V3 Medium 6.7
Description
In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5).
Overview
  • CVE ID
  • CVE-2020-27339
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-16T16:15:07
  • Last Modified Date
  • 2022-07-12T17:42:04
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.3 5.34.44
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.2 5.25.44
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.1 5.16.25
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.4 5.42.44
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.3 5.35.25
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.2 5.26.25
AND
cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.4 5.43.25
AND
cpe:2.3:o:siemens:ruggedcom_apr1808_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:ruggedcom_apr1808:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc127e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc227g_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc277g_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc327g_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc377g_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc427e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc477e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc477e_pro_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc477e_pro:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc627e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc647e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc677e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_ipc847e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:simatic_itp1000_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 6.7
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.insyde.com/security-pledge/SA-2021001 Vendor Advisory
https://security.netapp.com/advisory/ntap-20220216-0005/ Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-27339
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27339
History
Created Old Value New Value Data Type Notes
2022-05-10 06:27:01 Added to TrackCVE
2022-12-05 04:31:24 2021-06-16T16:15Z 2021-06-16T16:15:07 CVE Published Date updated
2022-12-05 04:31:24 2022-07-12T17:42:04 CVE Modified Date updated
2022-12-05 04:31:24 Analyzed Vulnerability Status updated