CVE-2020-36424
CVSS V2 Low 1.9
CVSS V3 Medium 4.7
Description
An issue was discovered in Arm Mbed TLS before 2.24.0. An attacker can recover a private key (for RSA or static Diffie-Hellman) via a side-channel attack against generation of base blinding/unblinding values.
Overview
- CVE ID
- CVE-2020-36424
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-07-19T17:15:11
- Last Modified Date
- 2023-01-11T17:02:38
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.7.17 | |
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.8.0 | 2.16.8 |
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.17.0 | 2.24.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 1.9
- Severity
- LOW
- Exploitability Score
- 3.4
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 4.7
- Base Severity
- MEDIUM
- Exploitability Score
- 1
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://bugs.gentoo.org/740108 | Issue Tracking Patch Third Party Advisory |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 | Release Notes Third Party Advisory |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 | Release Notes Third Party Advisory |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 | Release Notes Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html | |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-2 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-36424 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36424 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 15:52:29 | Added to TrackCVE | |||
| 2022-12-05 06:26:21 | 2021-07-19T17:15Z | 2021-07-19T17:15:11 | CVE Published Date | updated |
| 2022-12-05 06:26:21 | 2021-07-29T14:10:39 | CVE Modified Date | updated | |
| 2022-12-05 06:26:21 | 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 04:13:24 | References | updated | ||
| 2022-12-27 17:12:34 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-01-12 05:12:34 | 2023-01-11T17:02:38 | CVE Modified Date | updated | |
| 2023-01-12 05:12:34 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |