CVE-2020-15522

MEDIUM

5.9

Description

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.

CVE Details

CVSS v3.1 Score5.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published5/20/2021

Last Modified7/17/2025

Sourcenvd

Honeypot Sightings0

Affected Products

bouncycastle:bc-csharpbouncycastle:bouncy_castle_fips_.net_apibouncycastle:fips_java_apibouncycastle:the_bouncy_castle_crypto_package_for_java

Weaknesses (CWE)

CWE-362

References

https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522(cve@mitre.org)

https://github.com/bcgit/bc-java/wiki/CVE-2020-15522(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20210622-0007/(cve@mitre.org)

https://www.bouncycastle.org/releasenotes.html(cve@mitre.org)

https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/bcgit/bc-java/wiki/CVE-2020-15522(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20210622-0007/(af854a3a-2127-422b-91ae-364da2661108)

https://www.bouncycastle.org/releasenotes.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.