Timing Attack Affecting portable.bouncycastle package, versions [,1.8.7)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.13% (50th percentile)

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  • Snyk IDSNYK-DOTNET-PORTABLEBOUNCYCASTLE-8230403
  • published18 Oct 2024
  • disclosed20 May 2021
  • creditUnknown

Introduced: 20 May 2021

CVE-2020-15522  (opens in a new tab)
CWE-208  (opens in a new tab)

How to fix?

Upgrade Portable.BouncyCastle to version 1.8.7 or higher.

Overview

Affected versions of this package are vulnerable to Timing Attack. A timing issue within the EC math library can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.

CVSS Scores

version 3.1