CVE-2020-36421
CVSS V2 Medium 5
CVSS V3 Medium 5.3
Description
An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel in modular exponentiation, an RSA private key used in a secure enclave could be disclosed.
Overview
- CVE ID
- CVE-2020-36421
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-07-19T17:15:11
- Last Modified Date
- 2023-01-11T17:01:36
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.16.7 | |
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.17.0 | 2.23.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://bugs.gentoo.org/730752 | Issue Tracking Patch Third Party Advisory |
| https://github.com/ARMmbed/mbedtls/issues/3394 | Exploit Issue Tracking Third Party Advisory |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.7 | Release Notes Third Party Advisory |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.23.0 | Release Notes Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-36421 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36421 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:52:29 | Added to TrackCVE | |||
| 2022-12-05 06:26:09 | 2021-07-19T17:15Z | 2021-07-19T17:15:11 | CVE Published Date | updated |
| 2022-12-05 06:26:09 | 2021-07-29T14:03:40 | CVE Modified Date | updated | |
| 2022-12-05 06:26:09 | Analyzed | Vulnerability Status | updated | |
| 2022-12-26 04:13:22 | 2022-12-26T03:15:10 | CVE Modified Date | updated | |
| 2022-12-26 04:13:22 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-26 04:13:22 | References | updated | ||
| 2022-12-27 17:12:33 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-01-12 05:12:33 | 2023-01-11T17:01:36 | CVE Modified Date | updated | |
| 2023-01-12 05:12:33 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |