CVE-2020-27339

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 16-06-2021 06:15

Last modified: - 24-04-2022 04:00

Total changes: - 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).

Common Vulnerability Scoring System (CVSS)

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

Low

Attack complexity

Local

Attack vector

High

Availability

High

Confidentiality

High

Integrity

High

Privileges required

Unchanged

Scope

None

User interaction

6.7

Base score

0.8

5.9

Exploitability score

Impact score

Verification logic

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.3 AND versionEndExcluding=5.34.44

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.2 AND versionEndExcluding=5.25.44

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.1 AND versionEndExcluding=5.16.25

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.4 AND versionEndExcluding=5.42.44

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.3 AND versionEndExcluding=5.35.25

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.2 AND versionEndExcluding=5.26.25

vendor=insyde AND product=insydeh2o AND versionStartIncluding=5.4 AND versionEndExcluding=5.43.25

AND

vendor=siemens AND product=ruggedcom_apr1808_firmware AND version=-

vendor=siemens AND product=ruggedcom_apr1808 AND version=-

AND

vendor=siemens AND product=simatic_field_pg_m5_firmware AND version=-

vendor=siemens AND product=simatic_field_pg_m5 AND version=-

AND

vendor=siemens AND product=simatic_field_pg_m6_firmware AND version=-

vendor=siemens AND product=simatic_field_pg_m6 AND version=-

AND

vendor=siemens AND product=simatic_ipc127e_firmware AND version=-

vendor=siemens AND product=simatic_ipc127e AND version=-

AND

vendor=siemens AND product=simatic_ipc227g_firmware AND version=-

vendor=siemens AND product=simatic_ipc227g AND version=-

AND

vendor=siemens AND product=simatic_ipc277g_firmware AND version=-

vendor=siemens AND product=simatic_ipc277g AND version=-

AND

vendor=siemens AND product=simatic_ipc327g_firmware AND version=-

vendor=siemens AND product=simatic_ipc327g AND version=-

AND

vendor=siemens AND product=simatic_ipc377g_firmware AND version=-

vendor=siemens AND product=simatic_ipc377g AND version=-

AND

vendor=siemens AND product=simatic_ipc427e_firmware AND version=-

vendor=siemens AND product=simatic_ipc427e AND version=-

AND

vendor=siemens AND product=simatic_ipc477e_firmware AND version=-

vendor=siemens AND product=simatic_ipc477e AND version=-

AND

vendor=siemens AND product=simatic_ipc477e_pro_firmware AND version=-

vendor=siemens AND product=simatic_ipc477e_pro AND version=-

AND

vendor=siemens AND product=simatic_ipc627e_firmware AND version=-

vendor=siemens AND product=simatic_ipc627e AND version=-

AND

vendor=siemens AND product=simatic_ipc647e_firmware AND version=-

vendor=siemens AND product=simatic_ipc647e AND version=-

AND

vendor=siemens AND product=simatic_ipc677e_firmware AND version=-

vendor=siemens AND product=simatic_ipc677e AND version=-

AND

vendor=siemens AND product=simatic_ipc847e_firmware AND version=-

vendor=siemens AND product=simatic_ipc847e AND version=-

AND

vendor=siemens AND product=simatic_itp1000_firmware AND version=-

vendor=siemens AND product=simatic_itp1000 AND version=-

Reference

Keywords

CVE-2020-27339

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2020-27339

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures