GHSA-qcj7-g2j5-g7r3

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    GHSA-qcj7-g2j5-g7r3

    Published: 17 Oct 2018Last Modified: 2 Sept 2025

    Summary: In Bouncy Castle JCE Provider ECDSA does not fully validate ASN.1 encoding of signature on verification

    Details: In the Bouncy Castle JCE Provider version 1.55 and earlier ECDSA does not fully validate ASN.1 encoding of signature on verification. It is possible to inject extra elements in the sequence making up the signature and still have it validate, which in some cases may allow the introduction of 'invisible' data into a signed structure.

    References: https://nvd.nist.gov/vuln/detail/CVE-2016-1000342, https://github.com/bcgit/bc-java/commit/843c2e60f67d71faf81d236f448ebbe56c62c647#diff-25c3c78db788365f36839b3f2d3016b9, https://access.redhat.com/errata/RHSA-2018:2669, https://access.redhat.com/errata/RHSA-2018:2927, https://github.com/bcgit/bc-java, 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

    Affected packages

    Package

    Name: org.bouncycastle:bcprov-jdk14

    Purl: pkg:maven/org.bouncycastle/bcprov-jdk14

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.56

    Affected versions

    1.38

    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
    GHSA-qcj7-g2j5-g7r3 | CVE-DB