CVE-2016-1000340

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    CVE-2016-1000340

    Published: 4 Jun 2018Last Modified: 7 Aug 2026

    Summary:

    Details: 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.

    References: 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://security.netapp.com/advisory/ntap-20181127-0004/, https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00#diff-e5934feac8203ca0104ab291a3560a31

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 7107f91d9199401a19d4518d7c6b0f89e509d378
    Fixed -None

    Affected versions

    r1rv55

    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
    CVE-2016-1000340 | CVE-DB