GO-2020-0012

    Dashboard / Vulnerabilities / GO-2020-0012

    GO-2020-0012

    Published: 14 Apr 2021Last Modified: 4 Feb 2026

    Summary: Panic due to improper verification of cryptographic signatures in golang.org/x/crypto/ssh

    Details: An attacker can craft an ssh-ed25519 or [email protected] public key, such that the library will panic when trying to verify a signature with it. If verifying signatures using user supplied public keys, this may be used as a denial of service vector.

    References: https://go.dev/cl/220357, https://go.googlesource.com/crypto/+/bac4c82f69751a6dd76e702d54b3ceb88adab236, https://groups.google.com/g/golang-announce/c/3L45YRc91SY

    Affected packages

    Package

    Name: golang.org/x/crypto

    Purl: pkg:golang/golang.org/x/crypto

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.0.0-20200220183623-bac4c82f6975

    Affected versions

    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
    GO-2020-0012 | CVE-DB