CVE-2020-14966

    Dashboard / Vulnerabilities / CVE-2020-14966

    CVE-2020-14966

    Published: 22 Jun 2020Last Modified: 8 Jul 2026

    Summary:

    Details: An issue was discovered in the jsrsasign package through 8.0.18 for Node.js. It allows a malleability in ECDSA signatures by not checking overflows in the length of a sequence and '0' characters appended or prepended to an integer. The modified signatures are verified as valid. This could have a security-relevant impact if an application relied on a single canonical signature.

    References: https://github.com/kjur/jsrsasign/releases/tag/8.0.17, https://github.com/kjur/jsrsasign/releases/tag/8.0.18, https://kjur.github.io/jsrsasign/, https://security.netapp.com/advisory/ntap-20200724-0001/, https://www.npmjs.com/package/jsrsasign, https://github.com/kjur/jsrsasign/issues/437

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    8.0.18
    8.0.17
    8.0.16
    8.0.15
    8.0.14
    8.0.13
    8.0.12
    8.0.11
    8.0.10
    8.0.9
    8.0.8
    8.0.7
    8.0.6
    8.0.5
    8.0.4
    8.0.3
    8.0.2
    8.0.1
    8.0.0

    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-2020-14966 | CVE-DB