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    CVE-2016-1000346

    In the Bouncy Castle JCE Provider version 1.55 and earlier the other party DH public key is not fully validated. This can cause issues as invalid keys can be used to reveal details about the other party's private key where static Diffie-Hellman is in use. As of release 1.56 the key parameters are checked on agreement calculation.

    Published:Oct 29, 2016
    Last Modified:May 12, 2025
    EPS:Jun 4, 2018
    EPSS Score:0.01294
    CVSS Score:3.7

    Affected Products

    Vendor
    Bouncycastle
    Product
    Bc-java
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Redhat
    Product
    Jboss Fuse
    Vendor
    Redhat
    Product
    Satellite
    Vendor
    Redhat
    Product
    Satellite Capsule

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-325 Missing Cryptographic Step

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-68 Subvert Code-signing Facilities

    Related CVEs

    CVE-2026-13586 (CVSS 5.3) — In Bouncy Castle for Java before 1.85, PKCS#12 MAC and bag-decryption KDF iteration-count bound (DoS). This is…
    CVE-2026-13506 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, Lazy ASN.1 sequence forcing resets nesting-depth guard. This issue also…
    CVE-2026-12860 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, RSA PKCS#1 verification skips last two hash bytes in NULL-omitted path.…
    CVE-2026-12852 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, MLS wire decoder allocates attacker-declared opaque length before bound…
    CVE-2026-12817 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, OpenPGP AEAD decryption skips final tag on chunk-aligned data. This iss…
    CVE-2026-12816 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF split. This …
    CVE-2026-12803 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent (cross-nonce…
    CVE-2026-12802 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, CMS AuthEnvelopedData fails to enforce tag-length on decryption. This i…
    CVE-2026-14682 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, Possible OOM from unbounded up-front allocation on a definite-length re…
    CVE-2026-58059 (CVSS 8.7) — In Bouncy Castle for Java before 1.85, Quadratic-time escaping when stringifying X.500 distinguished names. Th…

    References

    https://access.redhat.com/errata/RHSA-2018:2669
    https://access.redhat.com/errata/RHSA-2018:2927
    https://github.com/bcgit/bc-java/commit/1127131c89021612c6eefa26dbe5714c194e7495#diff-d525a20b8acaed791ae2f0f770eb5937
    https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
    https://security.netapp.com/advisory/ntap-20181127-0004/
    https://usn.ubuntu.com/3727-1/
    https://www.oracle.com/security-alerts/cpuoct2020.html
    https://access.redhat.com/errata/RHSA-2018:2669
    https://access.redhat.com/errata/RHSA-2018:2927
    https://github.com/bcgit/bc-java/commit/1127131c89021612c6eefa26dbe5714c194e7495#diff-d525a20b8acaed791ae2f0f770eb5937
    https://lists.debian.org/debian-lts-announce/2018/07/msg00009.html
    https://security.netapp.com/advisory/ntap-20181127-0004/
    https://usn.ubuntu.com/3727-1/
    https://www.oracle.com/security-alerts/cpuoct2020.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High