Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-36647 First vendor Publication 2023-01-17
Vendor Cve Last vendor Modification 2023-01-27

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Overall CVSS Score 4.7
Base Score 4.7 Environmental Score 4.7
impact SubScore 3.6 Temporal Score 4.7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world) to recover the private keys used in RSA.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36647

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-327 Use of a Broken or Risky Cryptographic Algorithm (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 32

Sources (Detail)

Source Url
MISC https://github.com/ARMmbed/mbedtls/releases/
https://kouzili.com/Load-Step.pdf
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-adviso...

Alert History

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Date Informations
2024-02-02 02:27:16
  • Multiple Updates
2024-02-01 12:24:21
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2023-09-05 13:21:33
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2023-09-05 01:23:51
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2023-09-02 13:20:04
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2023-09-02 01:24:13
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2023-08-12 13:26:10
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2023-08-12 01:23:27
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2023-08-11 13:18:26
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2023-08-11 01:24:13
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2023-08-06 13:16:23
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2023-08-06 01:23:11
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2023-08-04 13:16:45
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2023-08-04 01:23:32
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2023-07-14 13:16:49
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2023-07-14 01:23:20
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2023-03-29 02:18:56
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2023-03-28 12:23:33
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2023-01-27 21:27:22
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2023-01-18 05:27:19
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2023-01-18 00:27:20
  • First insertion