Vulnerability Details CVE-2020-15522
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.1%
CVSS Severity
CVSS v3 Score 5.9
CVSS v2 Score 4.3
References
- https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522
- https://github.com/bcgit/bc-java/wiki/CVE-2020-15522
- https://security.netapp.com/advisory/ntap-20210622-0007/
- https://www.bouncycastle.org/releasenotes.html
- https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522
- https://github.com/bcgit/bc-java/wiki/CVE-2020-15522
- https://security.netapp.com/advisory/ntap-20210622-0007/
- https://www.bouncycastle.org/releasenotes.html
Products affected by CVE-2020-15522
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cpe:2.3:a:bouncycastle:bc-csharp:-
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cpe:2.3:a:bouncycastle:bouncy_castle_fips_.net_api:-
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cpe:2.3:a:bouncycastle:fips_java_api:-
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cpe:2.3:a:bouncycastle:fips_java_api:1.0.0
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cpe:2.3:a:bouncycastle:fips_java_api:1.0.1
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cpe:2.3:a:bouncycastle:fips_java_api:1.0.2
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cpe:2.3:a:bouncycastle:the_bouncy_castle_crypto_package_for_java:*