CVE-2020-36476

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-36476
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
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 Mailing List 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/2021/11/msg00021.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
History

21 Nov 2024, 05:29

Type Values Removed Values Added
References () https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 - Release Notes, Third Party Advisory () https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 - Release Notes, Third Party Advisory
References () https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 - Release Notes, Third Party Advisory () https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 - Release Notes, Third Party Advisory
References () https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 - Release Notes, Third Party Advisory () https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 - Release Notes, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html - Mailing List, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html - Mailing List, Third Party Advisory

26 Dec 2022, 03:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html -

12 Jul 2022, 17:42

Type Values Removed Values Added
CWE CWE-668 CWE-212

26 Nov 2021, 21:35

Type Values Removed Values Added
CPE cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
References (MLIST) https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html - (MLIST) https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html - Mailing List, Third Party Advisory

23 Nov 2021, 16:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html -

26 Aug 2021, 23:40

Type Values Removed Values Added
References (MISC) https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 - (MISC) https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 - Release Notes, Third Party Advisory
References (MISC) https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 - (MISC) https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 - Release Notes, Third Party Advisory
References (MISC) https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 - (MISC) https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 - Release Notes, Third Party Advisory
CWE CWE-668
CPE cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5

23 Aug 2021, 02:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-08-23 02:15

Updated : 2024-11-21 05:29

NVD link : CVE-2020-36476

Mitre link : CVE-2020-36476

CVE.ORG link : CVE-2020-36476

JSON object : View

Products Affected

arm

  • mbed_tls

debian

  • debian_linux
CWE
CWE-212

Improper Removal of Sensitive Information Before Storage or Transfer