Use of a Broken or Risky Cryptographic Algorithm Affecting mbedtls package, versions >=0.0.0


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-COCOAPODS-MBEDTLS-3244955
  • published23 Jan 2023
  • disclosed23 Jan 2023
  • creditZili Kou, Wenjian He, Sharad Sinha, and Wei Zhang

Introduced: 23 Jan 2023

CVE-2021-36647  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

mbedTLS is an An open source, portable, easy to use, readable and flexible SSL library.

Affected versions of this package are vulnerable to Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c, which 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.

References

CVSS Scores

version 3.1