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CVE-2020-36475

nvd nist
Published: Aug 23, 2021Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). The calculations performed by mbedtls_mpi_exp_mod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs.

Affected (11)

Arm
1 product
Mbed Tls
Siemens
6 products
Logo! Cmr2020 Firmware
Logo! Cmr2040 Firmware
Simatic Rtu3031c Firmware
Simatic Rtu3041c Firmware
Simatic Rtu3030c Firmware
Simatic Rtu3000c Firmware
Debian
1 product
Debian Linux
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Arm
Mbed Tls
Before 2.7.18
Mbed Tls
From 2.17.0 to 2.25.0
Mbed Tls
From 2.8.0 to 2.16.9
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Logo! Cmr2020 Firmware
Before 2.2
Running on/withPlatform Versions
Siemens
Logo! Cmr2020
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Logo! Cmr2040 Firmware
Before 2.2
Running on/withPlatform Versions
Siemens
Logo! Cmr2040
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Rtu3031c Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Rtu3031c
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Rtu3041c Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Rtu3041c
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Rtu3030c Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Rtu3030c
All versions
Configuration G
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Simatic Rtu3000c Firmware
All versions
Running on/withPlatform Versions
Siemens
Simatic Rtu3000c
All versions
Configuration H
2 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 10.0
Debian Linux
Version 9.0

Related CWEs

CWE-131
Incorrect Calculation of Buffer Size
The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.

References (12)

Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Release NotesThird Party Advisory
Source: cve@mitre.org
Release NotesThird Party Advisory
Source: cve@mitre.org
Release NotesThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory

Timeline

No history available yet.