CVE-2021-42554

CVSS V2 High 7.2 CVSS V3 High 8.2
Description
An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
Overview
  • CVE ID
  • CVE-2021-42554
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-02-03T02:15:07
  • Last Modified Date
  • 2022-03-08T20:18:59
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.0 5.08.42
AND
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.1 5.16.42
AND
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.2 5.26.42
AND
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.3 5.35.42
AND
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.4 5.42.51
AND
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 1 OR 5.5 5.50.51
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_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
AND
cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:siemens:ruggedcom_ape1808:-:*:*:*:*:*:*:* 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:C/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.2
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.5
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://www.insyde.com/security-pledge Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022012 Vendor Advisory
https://security.netapp.com/advisory/ntap-20220216-0007/ 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-2021-42554
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42554
History
Created Old Value New Value Data Type Notes
2022-05-10 15:46:54 Added to TrackCVE
2022-12-06 08:23:06 2022-02-03T02:15Z 2022-02-03T02:15:07 CVE Published Date updated
2022-12-06 08:23:06 2022-03-08T20:18:59 CVE Modified Date updated
2022-12-06 08:23:06 Analyzed Vulnerability Status updated