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CVE-2020-15522
Good to know:
Date: May 20, 2021
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.
Language: C#
Severity Score
Related Resources (7)
Severity Score
Weakness Type (CWE)
Race Conditions
CWE-362Top Fix
Upgrade Version
Upgrade to version org.bouncycastle:bc-fips:1.0.2.1;org.bouncycastle:bcprov-ext-jdk14:1.66;org.bouncycastle:bcprov-ext-jdk15on:1.66;org.bouncycastle:bcprov-jdk14:1.66;org.bouncycastle:bcprov-jdk15on:1.66;BouncyCastle - 1.8.9;Portable.BouncyCastle - 1.8.8
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | REQUIRED |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | HIGH |
CVSS v2
| Base Score: |
|
|---|---|
| Access Vector (AV): | NETWORK |
| Access Complexity (AC): | MEDIUM |
| Authentication (AU): | NONE |
| Confidentiality (C): | PARTIAL |
| Integrity (I): | PARTIAL |
| Availability (A): | PARTIAL |
| Additional information: |