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.
Products affected by CVE-2020-15522
- Bouncycastle » Legion-of-the-bouncy-castle-fips-java-apiVersions from including (>=) 1.0.2 and before (<) 1.0.2.1cpe: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:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-15522
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15522
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2020-15522
-
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-15522
-
https://security.netapp.com/advisory/ntap-20210622-0007/
CVE-2020-15522 Bouncy Castle Vulnerability in NetApp Products | NetApp Product Security
-
https://github.com/bcgit/bc-csharp/wiki/CVE-2020-15522
CVE 2020 15522 · bcgit/bc-csharp Wiki · GitHubThird Party Advisory
-
https://github.com/bcgit/bc-java/wiki/CVE-2020-15522
CVE 2020 15522 · bcgit/bc-java Wiki · GitHubThird Party Advisory
-
https://www.bouncycastle.org/releasenotes.html
Release Notes;Vendor Advisory
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