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CVE-2016-1000343

7.5 · HIGH

In the Bouncy Castle JCE Provider version 1.55 and earlier the DSA key pair generator generates a weak private key if used with default values.

Published Jun 4, 2018CWE-310EPSS 3.25%

Overview

CVE-2016-1000343 is a high-severity vulnerability. 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 version 1.55 and earlier the DSA key pair generator generates a weak private key if used with default values. If the JCA key pair generator is not explicitly initialised with DSA parameters, 1.55 and earlier generates a private value assuming a 1024 bit key size. In earlier releases this can be dealt with by explicitly passing parameters to the key pair generator.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refaccess.redhat.com/errata/RHSA-2018:2669Refaccess.redhat.com/errata/RHSA-2018:2927GitHubgithub.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389#diff-5578e61500abb2b87b300d3114bdfd7dReflists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3EReflists.debian.org/debian-lts-announce/2018/07/msg00009.htmlRefsecurity.netapp.com/advisory/ntap-20181127-0004/Refusn.ubuntu.com/3727-1/Refwww.oracle.com/security-alerts/cpuoct2020.htmlRefaccess.redhat.com/errata/RHSA-2018:2669Refaccess.redhat.com/errata/RHSA-2018:2927

How CyberStrike helps

Frequently asked questions

What is CVE-2016-1000343?

CVE-2016-1000343 is a high-severity vulnerability. It was published on June 4, 2018 and has a CVSS 3.0 base score of 7.5 (HIGH).

How severe is CVE-2016-1000343?

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-2016-1000343?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2016-1000343?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-1000343 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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