CVE-2020-15522
bouncycastle: Timing issue within the EC math library
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Bouncy Castle BC Java versiones anteriores a 1.66, BC C # .NET versiones anteriores a 1.8.7, BC-FJA versiones anteriores a 1.0.1.2, 1.0.2.1 y BC-FNA versiones anteriores a 1.0.1.1, presentan un problema de sincronización dentro de la biblioteca EC math que puede exponer información sobre la clave privada cuando un atacante es capaz de observar información de sincronización para la generación de múltiples firmas ECDSA deterministas
A flaw was found in bouncycastle. A timing issue within the EC math library can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-07-04 CVE Reserved
- 2021-05-20 CVE Published
- 2024-02-03 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522 | Third Party Advisory | |
| https://github.com/bcgit/bc-java/wiki/CVE-2020-15522 | Third Party Advisory | |
| https://security.netapp.com/advisory/ntap-20210622-0007 | X_refsource_confirm |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.bouncycastle.org/releasenotes.html | 2021-06-22 | |
| https://access.redhat.com/security/cve/CVE-2020-15522 | 2022-03-23 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1962879 | 2022-03-23 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Bouncycastle Search vendor "Bouncycastle" | Bc-csharp Search vendor "Bouncycastle" for product "Bc-csharp" | < 1.8.7 Search vendor "Bouncycastle" for product "Bc-csharp" and version " < 1.8.7" | - |
Affected
| ||||||
| Bouncycastle Search vendor "Bouncycastle" | Bouncy Castle Fips .net Api Search vendor "Bouncycastle" for product "Bouncy Castle Fips .net Api" | < 1.0.1.1 Search vendor "Bouncycastle" for product "Bouncy Castle Fips .net Api" and version " < 1.0.1.1" | - |
Affected
| ||||||
| Bouncycastle Search vendor "Bouncycastle" | Legion-of-the-bouncy-castle-fips-java-api Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-fips-java-api" | < 1.0.1.2 Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-fips-java-api" and version " < 1.0.1.2" | - |
Affected
| ||||||
| Bouncycastle Search vendor "Bouncycastle" | Legion-of-the-bouncy-castle-fips-java-api Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-fips-java-api" | >= 1.0.2 < 1.0.2.1 Search vendor "Bouncycastle" for product "Legion-of-the-bouncy-castle-fips-java-api" and version " >= 1.0.2 < 1.0.2.1" | - |
Affected
| ||||||
| Bouncycastle Search vendor "Bouncycastle" | The Bouncy Castle Crypto Package For Java Search vendor "Bouncycastle" for product "The Bouncy Castle Crypto Package For Java" | < 1.66 Search vendor "Bouncycastle" for product "The Bouncy Castle Crypto Package For Java" and version " < 1.66" | - |
Affected
| ||||||