CVE-2020-15522
CVSS V2 Medium 4.3
CVSS V3 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.
Overview
- CVE ID
- CVE-2020-15522
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2021-05-20T12:15:08
- Last Modified Date
- 2021-06-22T09:15:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:bouncycastle:bc-csharp:*:*:*:*:*:*:*:* | 1 | OR | 1.8.7 | |
| cpe:2.3:a:bouncycastle:bouncy_castle_fips_.net_api:*:*:*:*:*:*:*:* | 1 | OR | 1.0.1.1 | |
| cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api:*:*:*:*:*:*:*:* | 1 | OR | 1.0.1.2 | |
| cpe:2.3:a:bouncycastle:legion-of-the-bouncy-castle-fips-java-api:*:*:*:*:*:*:*:* | 1 | OR | 1.0.2 | 1.0.2.1 |
| cpe:2.3:a:bouncycastle:the_bouncy_castle_crypto_package_for_java:*:*:*:*:*:*:*:* | 1 | OR | 1.66 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| 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/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-15522 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15522 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:10:31 | Added to TrackCVE | |||
| 2022-12-05 02:39:45 | 2021-05-20T12:15Z | 2021-05-20T12:15:08 | CVE Published Date | updated |
| 2022-12-05 02:39:45 | 2021-06-22T09:15:11 | CVE Modified Date | updated | |
| 2022-12-05 02:39:45 | Modified | Vulnerability Status | updated |