NVD Vulnerability Detail

CVE-2020-27212

Summary	STMicroelectronics STM32L4 devices through 2020-10-19 have incorrect access control. The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase.
Publication Date	May 21, 2021, 9:15 p.m.
Registration Date	May 22, 2021, 10 a.m.
Last Update	Nov. 21, 2024, 2:20 p.m.

CVSS3.1 : HIGH
スコア	7.0
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/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)	高
攻撃に必要な特権レベル(PR)	低
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
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 : MEDIUM
Score	4.4
Vector	AV:L/AC:M/Au:N/C:P/I:P/A:P
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	低
可用性への影響(A)	低
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:o:st:stm32cubel4_firmware::::::::			1.16.0
execution environment
1	cpe:2.3:h:st:stm32l412c8:-:::::::*
2	cpe:2.3:h:st:stm32l412cb:-:::::::*
3	cpe:2.3:h:st:stm32l412k8:-:::::::*
4	cpe:2.3:h:st:stm32l412kb:-:::::::*
5	cpe:2.3:h:st:stm32l412r8:-:::::::*
6	cpe:2.3:h:st:stm32l412rb:-:::::::*
7	cpe:2.3:h:st:stm32l412t8:-:::::::*
8	cpe:2.3:h:st:stm32l412tb:-:::::::*
9	cpe:2.3:h:st:stm32l422cb:-:::::::*
10	cpe:2.3:h:st:stm32l422kb:-:::::::*
11	cpe:2.3:h:st:stm32l422rb:-:::::::*
12	cpe:2.3:h:st:stm32l422tb:-:::::::*
13	cpe:2.3:h:st:stm32l431cb:-:::::::*
14	cpe:2.3:h:st:stm32l431cc:-:::::::*
15	cpe:2.3:h:st:stm32l431kb:-:::::::*
16	cpe:2.3:h:st:stm32l431kc:-:::::::*
17	cpe:2.3:h:st:stm32l431rb:-:::::::*
18	cpe:2.3:h:st:stm32l431rc:-:::::::*
19	cpe:2.3:h:st:stm32l431vc:-:::::::*
20	cpe:2.3:h:st:stm32l432kb:-:::::::*
21	cpe:2.3:h:st:stm32l432kc:-:::::::*
22	cpe:2.3:h:st:stm32l433cb:-:::::::*
23	cpe:2.3:h:st:stm32l433cc:-:::::::*
24	cpe:2.3:h:st:stm32l433rb:-:::::::*
25	cpe:2.3:h:st:stm32l433rc:-:::::::*
26	cpe:2.3:h:st:stm32l433vc:-:::::::*
27	cpe:2.3:h:st:stm32l442kc:-:::::::*
28	cpe:2.3:h:st:stm32l443cc:-:::::::*
29	cpe:2.3:h:st:stm32l443rc:-:::::::*
30	cpe:2.3:h:st:stm32l443vc:-:::::::*
31	cpe:2.3:h:st:stm32l451cc:-:::::::*
32	cpe:2.3:h:st:stm32l451ce:-:::::::*
33	cpe:2.3:h:st:stm32l451rc:-:::::::*
34	cpe:2.3:h:st:stm32l451re:-:::::::*
35	cpe:2.3:h:st:stm32l451vc:-:::::::*
36	cpe:2.3:h:st:stm32l451ve:-:::::::*
37	cpe:2.3:h:st:stm32l452cc:-:::::::*
38	cpe:2.3:h:st:stm32l452ce:-:::::::*
39	cpe:2.3:h:st:stm32l452rc:-:::::::*
40	cpe:2.3:h:st:stm32l452re:-:::::::*
41	cpe:2.3:h:st:stm32l452vc:-:::::::*
42	cpe:2.3:h:st:stm32l452ve:-:::::::*
43	cpe:2.3:h:st:stm32l462ce:-:::::::*
44	cpe:2.3:h:st:stm32l462re:-:::::::*
45	cpe:2.3:h:st:stm32l462ve:-:::::::*
46	cpe:2.3:h:st:stm32l471qe:-:::::::*
47	cpe:2.3:h:st:stm32l471qg:-:::::::*
48	cpe:2.3:h:st:stm32l471re:-:::::::*
49	cpe:2.3:h:st:stm32l471rg:-:::::::*
50	cpe:2.3:h:st:stm32l471ve:-:::::::*
51	cpe:2.3:h:st:stm32l471vg:-:::::::*
52	cpe:2.3:h:st:stm32l471ze:-:::::::*
53	cpe:2.3:h:st:stm32l471zg:-:::::::*
54	cpe:2.3:h:st:stm32l475rc:-:::::::*
55	cpe:2.3:h:st:stm32l475re:-:::::::*
56	cpe:2.3:h:st:stm32l475rg:-:::::::*
57	cpe:2.3:h:st:stm32l475vc:-:::::::*
58	cpe:2.3:h:st:stm32l475ve:-:::::::*
59	cpe:2.3:h:st:stm32l475vg:-:::::::*
60	cpe:2.3:h:st:stm32l476je:-:::::::*
61	cpe:2.3:h:st:stm32l476jg:-:::::::*
62	cpe:2.3:h:st:stm32l476me:-:::::::*
63	cpe:2.3:h:st:stm32l476mg:-:::::::*
64	cpe:2.3:h:st:stm32l476qe:-:::::::*
65	cpe:2.3:h:st:stm32l476qg:-:::::::*
66	cpe:2.3:h:st:stm32l476rc:-:::::::*
67	cpe:2.3:h:st:stm32l476re:-:::::::*
68	cpe:2.3:h:st:stm32l476rg:-:::::::*
69	cpe:2.3:h:st:stm32l476vc:-:::::::*
70	cpe:2.3:h:st:stm32l476ve:-:::::::*
71	cpe:2.3:h:st:stm32l476vg:-:::::::*
72	cpe:2.3:h:st:stm32l476ze:-:::::::*
73	cpe:2.3:h:st:stm32l476zg:-:::::::*
74	cpe:2.3:h:st:stm32l486jg:-:::::::*
75	cpe:2.3:h:st:stm32l486qg:-:::::::*
76	cpe:2.3:h:st:stm32l486rg:-:::::::*
77	cpe:2.3:h:st:stm32l486vg:-:::::::*
78	cpe:2.3:h:st:stm32l486zg:-:::::::*
79	cpe:2.3:h:st:stm32l496ae:-:::::::*
80	cpe:2.3:h:st:stm32l496ag:-:::::::*
81	cpe:2.3:h:st:stm32l496qe:-:::::::*
82	cpe:2.3:h:st:stm32l496qg:-:::::::*
83	cpe:2.3:h:st:stm32l496re:-:::::::*
84	cpe:2.3:h:st:stm32l496rg:-:::::::*
85	cpe:2.3:h:st:stm32l496ve:-:::::::*
86	cpe:2.3:h:st:stm32l496vg:-:::::::*
87	cpe:2.3:h:st:stm32l496wg:-:::::::*
88	cpe:2.3:h:st:stm32l496ze:-:::::::*
89	cpe:2.3:h:st:stm32l496zg:-:::::::*
90	cpe:2.3:h:st:stm32l4a6ag:-:::::::*
91	cpe:2.3:h:st:stm32l4a6qg:-:::::::*
92	cpe:2.3:h:st:stm32l4a6rg:-:::::::*
93	cpe:2.3:h:st:stm32l4a6vg:-:::::::*
94	cpe:2.3:h:st:stm32l4a6zg:-:::::::*

Related information, measures and tools

No	URL	タグ
1	https://eprint.iacr.org/2021/640	Third Party Advisory
2	https://eprint.iacr.org/2021/640	Third Party Advisory
3	https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html	Third Party Advisory
4	https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html	Third Party Advisory
5	https://www.aisec.fraunhofer.de/en/FirmwareProtection.html	Third Party Advisory
6	https://www.aisec.fraunhofer.de/en/FirmwareProtection.html	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-74	インジェクション	https://cwe.mitre.org/data/definitions/74.html

JVN Vulnerability Information

STMicroelectronics STM32L4 デバイスにおけるインジェクションに関する脆弱性

Title	STMicroelectronics STM32L4 デバイスにおけるインジェクションに関する脆弱性
Summary	STMicroelectronics STM32L4 デバイスには、インジェクションに関する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	ベンダ情報および参考情報を参照して適切な対策を実施してください。
Publication Date	May 21, 2021, midnight
Registration Date	Feb. 15, 2022, 5:42 p.m.
Last Update	March 27, 2025, 12:16 p.m.

Affected System

STMicroelectronics

STM32CubeL4 ファームウェア 2020/10/19 まで

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2020-27212	https://www.cve.org/CVERecord?id=CVE-2020-27212
National Vulnerability Database (NVD)
2	CVE-2020-27212	https://nvd.nist.gov/vuln/detail/CVE-2020-27212

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-74	https://cwe.mitre.org/data/definitions/74.html

ベンダー情報

No	Name	URL
STマイクロエレクトロニクス
1	ファームウェア：STM32CubeL4	https://www.stmcu.jp/design/sw_dev/firmware/52726/

その他

No	Name	URL
ICS-CERT ADVISORY
1	CSA-25-084-03	https://www.cisa.gov/news-events/ics-advisories/icsa-25-084-03
JVN
2	JVNVU#94505127	https://jvn.jp/vu/JVNVU94505127/index.html
関連文書
3	Fault Injection Attacks	https://www.aisec.fraunhofer.de/de/das-institut/wissenschaftliche-exzellenz/security-and-trust-in-open-source-security-tokens.html

Change Log

No	Changed Details	Date of change
1	[2022年02月15日] 掲載	Feb. 15, 2022, 5:42 p.m.
2	[2025年03月27日] 参考情報：JVN (JVNVU#94505127) を追加参考情報：ICS-CERT ADVISORY (CSA-25-084-03) を追加	March 27, 2025, 11:11 a.m.

Configuration1		or higher	or less	more than	less than
cpe:2.3:o:st:stm32cubel4_firmware::::::::			1.16.0
execution environment
1	cpe:2.3:h:st:stm32l412c8:-:::::::*
2	cpe:2.3:h:st:stm32l412cb:-:::::::*
3	cpe:2.3:h:st:stm32l412k8:-:::::::*
4	cpe:2.3:h:st:stm32l412kb:-:::::::*
5	cpe:2.3:h:st:stm32l412r8:-:::::::*
6	cpe:2.3:h:st:stm32l412rb:-:::::::*
7	cpe:2.3:h:st:stm32l412t8:-:::::::*
8	cpe:2.3:h:st:stm32l412tb:-:::::::*
9	cpe:2.3:h:st:stm32l422cb:-:::::::*
10	cpe:2.3:h:st:stm32l422kb:-:::::::*
11	cpe:2.3:h:st:stm32l422rb:-:::::::*
12	cpe:2.3:h:st:stm32l422tb:-:::::::*
13	cpe:2.3:h:st:stm32l431cb:-:::::::*
14	cpe:2.3:h:st:stm32l431cc:-:::::::*
15	cpe:2.3:h:st:stm32l431kb:-:::::::*
16	cpe:2.3:h:st:stm32l431kc:-:::::::*
17	cpe:2.3:h:st:stm32l431rb:-:::::::*
18	cpe:2.3:h:st:stm32l431rc:-:::::::*
19	cpe:2.3:h:st:stm32l431vc:-:::::::*
20	cpe:2.3:h:st:stm32l432kb:-:::::::*
21	cpe:2.3:h:st:stm32l432kc:-:::::::*
22	cpe:2.3:h:st:stm32l433cb:-:::::::*
23	cpe:2.3:h:st:stm32l433cc:-:::::::*
24	cpe:2.3:h:st:stm32l433rb:-:::::::*
25	cpe:2.3:h:st:stm32l433rc:-:::::::*
26	cpe:2.3:h:st:stm32l433vc:-:::::::*
27	cpe:2.3:h:st:stm32l442kc:-:::::::*
28	cpe:2.3:h:st:stm32l443cc:-:::::::*
29	cpe:2.3:h:st:stm32l443rc:-:::::::*
30	cpe:2.3:h:st:stm32l443vc:-:::::::*
31	cpe:2.3:h:st:stm32l451cc:-:::::::*
32	cpe:2.3:h:st:stm32l451ce:-:::::::*
33	cpe:2.3:h:st:stm32l451rc:-:::::::*
34	cpe:2.3:h:st:stm32l451re:-:::::::*
35	cpe:2.3:h:st:stm32l451vc:-:::::::*
36	cpe:2.3:h:st:stm32l451ve:-:::::::*
37	cpe:2.3:h:st:stm32l452cc:-:::::::*
38	cpe:2.3:h:st:stm32l452ce:-:::::::*
39	cpe:2.3:h:st:stm32l452rc:-:::::::*
40	cpe:2.3:h:st:stm32l452re:-:::::::*
41	cpe:2.3:h:st:stm32l452vc:-:::::::*
42	cpe:2.3:h:st:stm32l452ve:-:::::::*
43	cpe:2.3:h:st:stm32l462ce:-:::::::*
44	cpe:2.3:h:st:stm32l462re:-:::::::*
45	cpe:2.3:h:st:stm32l462ve:-:::::::*
46	cpe:2.3:h:st:stm32l471qe:-:::::::*
47	cpe:2.3:h:st:stm32l471qg:-:::::::*
48	cpe:2.3:h:st:stm32l471re:-:::::::*
49	cpe:2.3:h:st:stm32l471rg:-:::::::*
50	cpe:2.3:h:st:stm32l471ve:-:::::::*
51	cpe:2.3:h:st:stm32l471vg:-:::::::*
52	cpe:2.3:h:st:stm32l471ze:-:::::::*
53	cpe:2.3:h:st:stm32l471zg:-:::::::*
54	cpe:2.3:h:st:stm32l475rc:-:::::::*
55	cpe:2.3:h:st:stm32l475re:-:::::::*
56	cpe:2.3:h:st:stm32l475rg:-:::::::*
57	cpe:2.3:h:st:stm32l475vc:-:::::::*
58	cpe:2.3:h:st:stm32l475ve:-:::::::*
59	cpe:2.3:h:st:stm32l475vg:-:::::::*
60	cpe:2.3:h:st:stm32l476je:-:::::::*
61	cpe:2.3:h:st:stm32l476jg:-:::::::*
62	cpe:2.3:h:st:stm32l476me:-:::::::*
63	cpe:2.3:h:st:stm32l476mg:-:::::::*
64	cpe:2.3:h:st:stm32l476qe:-:::::::*
65	cpe:2.3:h:st:stm32l476qg:-:::::::*
66	cpe:2.3:h:st:stm32l476rc:-:::::::*
67	cpe:2.3:h:st:stm32l476re:-:::::::*
68	cpe:2.3:h:st:stm32l476rg:-:::::::*
69	cpe:2.3:h:st:stm32l476vc:-:::::::*
70	cpe:2.3:h:st:stm32l476ve:-:::::::*
71	cpe:2.3:h:st:stm32l476vg:-:::::::*
72	cpe:2.3:h:st:stm32l476ze:-:::::::*
73	cpe:2.3:h:st:stm32l476zg:-:::::::*
74	cpe:2.3:h:st:stm32l486jg:-:::::::*
75	cpe:2.3:h:st:stm32l486qg:-:::::::*
76	cpe:2.3:h:st:stm32l486rg:-:::::::*
77	cpe:2.3:h:st:stm32l486vg:-:::::::*
78	cpe:2.3:h:st:stm32l486zg:-:::::::*
79	cpe:2.3:h:st:stm32l496ae:-:::::::*
80	cpe:2.3:h:st:stm32l496ag:-:::::::*
81	cpe:2.3:h:st:stm32l496qe:-:::::::*
82	cpe:2.3:h:st:stm32l496qg:-:::::::*
83	cpe:2.3:h:st:stm32l496re:-:::::::*
84	cpe:2.3:h:st:stm32l496rg:-:::::::*
85	cpe:2.3:h:st:stm32l496ve:-:::::::*
86	cpe:2.3:h:st:stm32l496vg:-:::::::*
87	cpe:2.3:h:st:stm32l496wg:-:::::::*
88	cpe:2.3:h:st:stm32l496ze:-:::::::*
89	cpe:2.3:h:st:stm32l496zg:-:::::::*
90	cpe:2.3:h:st:stm32l4a6ag:-:::::::*
91	cpe:2.3:h:st:stm32l4a6qg:-:::::::*
92	cpe:2.3:h:st:stm32l4a6rg:-:::::::*
93	cpe:2.3:h:st:stm32l4a6vg:-:::::::*
94	cpe:2.3:h:st:stm32l4a6zg:-:::::::*