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Bouncy Castle has a flaw in the Low-level interface to RSA key pair generator

High severity GitHub Reviewed Published Oct 16, 2018 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

maven org.bouncycastle:bcprov-jdk14 (Maven)

Affected versions

< 1.60

Patched versions

1.60
maven org.bouncycastle:bcprov-jdk15 (Maven)
< 1.60
1.60

Description

Bouncy Castle BC 1.54 - 1.59, BC-FJA 1.0.0, BC-FJA 1.0.1 and earlier have a flaw in the Low-level interface to RSA key pair generator, specifically RSA Key Pairs generated in low-level API with added certainty may have less M-R tests than expected. This appears to be fixed in versions BC 1.60 beta 4 and later, BC-FJA 1.0.2 and later.

References

Published by the National Vulnerability Database Jun 5, 2018
Published to the GitHub Advisory Database Oct 16, 2018
Reviewed Jun 16, 2020
Last updated Feb 1, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.498%
(77th percentile)

Weaknesses

CVE ID

CVE-2018-1000180

GHSA ID

GHSA-xqj7-j8j5-f2xr

Source code

No known source code
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