Home/CVE/An issue was discovered in Arm Mbed TLS before 2.24.0. An attacker can recover a private key (for RSA or static Diffie-H
CVE

CVE-2020-36424

An issue was discovered in Arm Mbed TLS before 2.24.0. An attacker can recover a private key (for RSA or static Diffie-H

An issue was discovered in Arm Mbed TLS before 2.24.0. An attacker can recover a private key (for RSA or static Diffie-Hellman) via a side-channel attack against generation of base blinding/unblinding values.

MEDIUM · CVSS 4.7 EPSS 0.00131
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-203Observable Discrepancy
▤

Affected Products & Versions

4
arm mbed tls< 2.7.17
arm mbed tls>= 2.8.0 and < 2.16.8
arm mbed tls>= 2.17.0 and < 2.24.0
debian linuxall versions
▣

Scoring & Timeline

4.7
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Jul 2021 · 05:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

1
msrcCVE-2020-36424
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.gentoo.org/740108Issue TrackingPatchThird Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8Release NotesThird Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0Release NotesThird Party Advisory
https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17Release NotesThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing ListThird Party Advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-2Vendor Advisory
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