NVD Vulnerability Detail
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CVE-2021-33627
Summary

An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.

Publication Date Feb. 3, 2022, 11:15 a.m.
Registration Date Feb. 3, 2022, 4 p.m.
Last Update Nov. 21, 2024, 3:09 p.m.
CVSS3.1 : HIGH
スコア 8.2
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC) 低
攻撃に必要な特権レベル(PR) 高
利用者の関与(UI) 不要
影響の想定範囲(S) 変更あり
機密性への影響(C) 高
完全性への影響(I) 高
可用性への影響(A) 高
CVSS2.0 : HIGH
Score 7.2
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C
攻撃元区分(AV) ローカル
攻撃条件の複雑さ(AC) 低
攻撃前の認証要否(Au) 不要
機密性への影響(C) 高
完全性への影響(I) 高
可用性への影響(A) 高
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 5.0 5.08.29
Configuration2 or higher or less more than less than
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 5.1 5.16.29
Configuration3 or higher or less more than less than
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 5.2 5.26.29
Configuration4 or higher or less more than less than
cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* 5.3 5.35.29
Configuration5 or higher or less more than less than
cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:*
Configuration6 or higher or less more than less than
cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:*
Configuration7 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc127e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:*
Configuration8 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc227g_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:*
Configuration9 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc277g_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:*
Configuration10 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc327g_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:*
Configuration11 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc377g_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:*
Configuration12 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:*
Configuration13 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:*
Configuration14 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc627e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:*
Configuration15 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc647e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:*
Configuration16 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc677e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:*
Configuration17 or higher or less more than less than
cpe:2.3:o:siemens:simatic_ipc847e_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:*
Configuration18 or higher or less more than less than
cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:*
execution environment
1 cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Insyde InsydeH2O におけるバッファエラーの脆弱性
Title Insyde InsydeH2O におけるバッファエラーの脆弱性
Summary

Insyde InsydeH2O には、バッファエラーの脆弱性が存在します。

Possible impacts 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date Feb. 1, 2022, midnight
Registration Date Feb. 17, 2022, 10:51 a.m.
Last Update Feb. 28, 2022, 4:09 p.m.
Affected System
Insyde Software
InsydeH2O 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
No Changed Details Date of change
1 [2022年02月17日]
  掲載		 Feb. 17, 2022, 10:51 a.m.
2 [2022年02月28日]
  参考情報：JVN (JVNVU#98748974) を追加		 Feb. 28, 2022, 2:14 p.m.