Race Condition Affecting bouncycastle package, versions <1.68-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.13% (49th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-BOUNCYCASTLE-1296131
  • published21 May 2021
  • disclosed20 May 2021

Introduced: 20 May 2021

CVE-2020-15522  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Debian:unstable bouncycastle to version 1.68-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bouncycastle package and not the bouncycastle package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.1.2, 1.0.2.1, and BC-FNA before 1.0.1.1 have a timing issue within the EC math library that 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