CVE-2020-36421

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.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
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	Mailing List Third Party Advisory
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	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-07-19 17:15

Updated : 2024-11-21 05:29

NVD link : CVE-2020-36421

Mitre link : CVE-2020-36421

CVE.ORG link : CVE-2020-36421

JSON object : View

Products Affected

debian

debian_linux

arm

mbed_tls

CWE

CWE-203

Observable Discrepancy

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