CVE-2018-1000180 — Bouncy Castle BC 1

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 ver

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-06-05T13:00:00.000Z
• Last modified: 2024-08-05T12:33:49.372Z

09References

• access.redhat.com — https://access.redhat.com/errata/RHSA-2018:2428
• access.redhat.com — https://access.redhat.com/errata/RHSA-2018:2669
• access.redhat.com — https://access.redhat.com/errata/RHSA-2018:2643
• access.redhat.com — https://access.redhat.com/errata/RHSA-2018:2424
• access.redhat.com — https://access.redhat.com/errata/RHSA-2018:2423
• access.redhat.com — https://access.redhat.com/errata/RHSA-2018:2425
• www.debian.org — https://www.debian.org/security/2018/dsa-4233
• lists.apache.org — https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c24…
• www.securityfocus.com — http://www.securityfocus.com/bid/106567
• access.redhat.com — https://access.redhat.com/errata/RHSA-2019:0877
• www.oracle.com — https://www.oracle.com/security-alerts/cpuapr2020.html
• www.oracle.com — https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
• www.oracle.com — https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
• www.oracle.com — https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
• www.oracle.com — https://www.oracle.com/security-alerts/cpuoct2020.html
• www.bountysource.com — https://www.bountysource.com/issues/58293083-rsa-key-generation-computation-of-i…
• github.com — https://github.com/bcgit/bc-java/commit/22467b6e8fe19717ecdf201c0cf91bacf04a55ad
• github.com — https://github.com/bcgit/bc-java/commit/73780ac522b7795fc165630aba8d5f5729acc839
• security.netapp.com — https://security.netapp.com/advisory/ntap-20190204-0003/
• github.com — https://github.com/bcgit/bc-java/wiki/CVE-2018-1000180
• www.oracle.com — https://www.oracle.com/security-alerts/cpuApr2021.html