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Vulnerability details: VCID-56qz-wy5r-ybgx
Vulnerability ID VCID-56qz-wy5r-ybgx
Aliases CVE-2016-1000343
GHSA-rrvx-pwf8-p59p
Summary In Bouncy Castle JCE Provider the DSA key pair generator generates a weak private key if used with default values 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 7.5 https://access.redhat.com/errata/RHSA-2018:2669
generic_textual HIGH https://access.redhat.com/errata/RHSA-2018:2669
cvssv3.1 7.5 https://access.redhat.com/errata/RHSA-2018:2927
generic_textual HIGH https://access.redhat.com/errata/RHSA-2018:2927
cvssv3 2.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-1000343.json
epss 0.01074 https://api.first.org/data/v1/epss?cve=CVE-2016-1000343
cvssv3.1 7.5 https://github.com/advisories/GHSA-rrvx-pwf8-p59p
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-rrvx-pwf8-p59p
generic_textual HIGH https://github.com/advisories/GHSA-rrvx-pwf8-p59p
cvssv3.1 7.5 https://github.com/bcgit/bc-java
generic_textual HIGH https://github.com/bcgit/bc-java
cvssv3.1 7.5 https://github.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389#diff-5578e61500abb2b87b300d3114bdfd7d
generic_textual HIGH https://github.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389#diff-5578e61500abb2b87b300d3114bdfd7d
cvssv3.1 7.5 https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E
generic_textual HIGH https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E
cvssv3.1 7.5 https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
generic_textual HIGH https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-1000343
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2016-1000343
cvssv3.1 7.5 https://security.netapp.com/advisory/ntap-20181127-0004
generic_textual HIGH https://security.netapp.com/advisory/ntap-20181127-0004
cvssv3.1 7.5 https://usn.ubuntu.com/3727-1
generic_textual HIGH https://usn.ubuntu.com/3727-1
cvssv3.1 7.5 https://www.oracle.com/security-alerts/cpuoct2020.html
generic_textual HIGH https://www.oracle.com/security-alerts/cpuoct2020.html
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:2669
https://access.redhat.com/errata/RHSA-2018:2927
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-1000343.json
https://api.first.org/data/v1/epss?cve=CVE-2016-1000343
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1000343
https://github.com/advisories/GHSA-rrvx-pwf8-p59p
https://github.com/bcgit/bc-java
https://github.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389
https://github.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389#diff-5578e61500abb2b87b300d3114bdfd7d
https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E
https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
https://nvd.nist.gov/vuln/detail/CVE-2016-1000343
https://security.netapp.com/advisory/ntap-20181127-0004
https://usn.ubuntu.com/3727-1
https://www.oracle.com/security-alerts/cpuoct2020.html
1588721 https://bugzilla.redhat.com/show_bug.cgi?id=1588721
USN-3727-1 https://usn.ubuntu.com/3727-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/errata/RHSA-2018:2669
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

changed

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://access.redhat.com/errata/RHSA-2018:2927
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

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required

unchanged

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Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-1000343.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

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none

required

unchanged

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/advisories/GHSA-rrvx-pwf8-p59p
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

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low

none

high

low

none

high

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/bcgit/bc-java
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/bcgit/bc-java/commit/50a53068c094d6cff37659da33c9b4505becd389#diff-5578e61500abb2b87b300d3114bdfd7d
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-1000343
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://security.netapp.com/advisory/ntap-20181127-0004
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://usn.ubuntu.com/3727-1
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://www.oracle.com/security-alerts/cpuoct2020.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.78068
EPSS Score 0.01074
Published At May 29, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-05-29T09:18:28.113313+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/10/GHSA-rrvx-pwf8-p59p/GHSA-rrvx-pwf8-p59p.json 38.6.0