CVE-2020-36476
Gentoo Linux Security Advisory 202301-08
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se ha detectado un problema en Mbed TLS versiones anteriores a 2.24.0 (y versiones anteriores a 2.16.8 LTS y versiones anteriores a 2.7.17 LTS). Falta la puesta a cero de los búferes de texto plano en la función mbedtls_ssl_read para borrar de la memoria los datos no usados de la aplicación.
Multiple vulnerabilities have been discovered in Mbed TLS, the worst of which could result in arbitrary code execution. Versions less than 2.28.1 are affected.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-08-23 CVE Reserved
- 2021-08-23 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 | Release Notes | |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 | Release Notes | |
| https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 | Release Notes | |
| https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html | Mailing List |
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| URL | Date | SRC |
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| URL | Date | SRC |
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| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Arm Search vendor "Arm" | Mbed Tls Search vendor "Arm" for product "Mbed Tls" | < 2.7.17 Search vendor "Arm" for product "Mbed Tls" and version " < 2.7.17" | - |
Affected
| ||||||
| Arm Search vendor "Arm" | Mbed Tls Search vendor "Arm" for product "Mbed Tls" | >= 2.8.0 < 2.16.8 Search vendor "Arm" for product "Mbed Tls" and version " >= 2.8.0 < 2.16.8" | - |
Affected
| ||||||
| Arm Search vendor "Arm" | Mbed Tls Search vendor "Arm" for product "Mbed Tls" | >= 2.17.0 < 2.24.0 Search vendor "Arm" for product "Mbed Tls" and version " >= 2.17.0 < 2.24.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||