CVE-2016-1000340
7.5 · HIGHOverview
CVE-2016-1000340 is a high-severity vulnerability affecting bouncycastle bc-java. It was published on June 4, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry propagation bug was introduced in the implementation of squaring for several raw math classes have been fixed (org.bouncycastle.math.raw.Nat???). These classes are used by our custom elliptic curve implementations (org.bouncycastle.math.ec.custom.**), so there was the possibility of rare (in general usage) spurious calculations for elliptic curve scalar multiplications. Such errors would have been detected with high probability by the output validation for our scalar multipliers.
Remediation
Check the references section for vendor advisories and patches from bouncycastle. Update bc-java to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| bouncycastle | bc-java | 1.51 | Affected |
References
Frequently Asked Questions
What is CVE-2016-1000340?
CVE-2016-1000340 is a high-severity vulnerability affecting bouncycastle bc-java. It was published on June 4, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).
How severe is CVE-2016-1000340?
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2016-1000340?
Check the references section for vendor advisories and patches from bouncycastle. Update bc-java to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2016-1000340?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-1000340 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2016
View all →Unspecified vulnerability in the Oracle GoldenGate component in Oracle GoldenGate 11.2 and 12.1.2 al
Unspecified vulnerability in the Oracle GoldenGate component in Oracle GoldenGate 11.2 and 12.1.2 al
Unspecified vulnerability in Oracle Java SE 6u105, 7u91, and 8u66; Java SE Embedded 8u65; and JRocki
Unspecified vulnerability in the Java SE and Java SE Embedded components in Oracle Java SE 6u105, 7u
Unspecified vulnerability in the Oracle Outside In Technology component in Oracle Fusion Middleware
Unspecified vulnerability in the Oracle Outside In Technology component in Oracle Fusion Middleware
Unspecified vulnerability in the Oracle Outside In Technology component in Oracle Fusion Middleware
Unspecified vulnerability in the Java VM component in Oracle Database Server 11.2.0.4, 12.1.0.1, and
Buffer overflow in IBM i Access 7.1 on Windows allows local users to gain privileges via unspecified
Cross-site request forgery (CSRF) vulnerability in Lotus Mashups in IBM Mashup Center 3.0.0.1 allows
Cross-site request forgery (CSRF) vulnerability in HP StoreOnce Backup system software before 3.13.1
Cross-site request forgery (CSRF) vulnerability in Lifecycle Query Engine (LQE) in IBM Jazz Reportin