CVE Vulnerability

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522 Third Party Advisory
https://www.bouncycastle.org/releasenotes.html Release Notes Vendor Advisory
https://github.com/bcgit/bc-java/wiki/CVE-2020-15522 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210622-0007/
Configurations

Configuration 1

cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api:*:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api:*:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:bc-csharp:*:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:bouncy_castle_fips_.net_api:*:*:*:*:*:*:*:*
cpe:2.3:a:bouncycastle:the_bouncy_castle_crypto_package_for_java:*:*:*:*:*:*:*:*
Information

Published : 2021-05-20 12:15

Updated : 2021-06-22 09:15

NVD link : CVE-2020-15522

Mitre link : CVE-2020-15522

Products Affected
No products.
CWE
CWE-362