CVE-2020-36476
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
An issue was discovered in Mbed TLS before 2.24.0 (and before 2.16.8 LTS and before 2.7.17 LTS). There is missing zeroization of plaintext buffers in mbedtls_ssl_read to erase unused application data from memory.
Overview
- CVE ID
- CVE-2020-36476
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-08-23T02:15:06
- Last Modified Date
- 2023-01-11T17:01:05
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 |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- 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:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| 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/2021/11/msg00021.html | Mailing List 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-2020-36476 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36476 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:44:52 | Added to TrackCVE | |||
| 2022-12-05 08:41:24 | 2021-08-23T02:15Z | 2021-08-23T02:15:06 | CVE Published Date | updated |
| 2022-12-05 08:41:24 | 2022-07-12T17:42:04 | CVE Modified Date | updated | |
| 2022-12-05 08:41:24 | Analyzed | Vulnerability Status | updated | |
| 2022-12-26 04:13:32 | 2022-12-26T03:15:11 | CVE Modified Date | updated | |
| 2022-12-26 04:13:32 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-26 04:13:33 | References | updated | ||
| 2022-12-27 17:12:42 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-01-12 05:12:42 | 2023-01-11T17:01:05 | CVE Modified Date | updated | |
| 2023-01-12 05:12:42 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |