GO-2025-3447

    Dashboard / Vulnerabilities / GO-2025-3447

    GO-2025-3447

    Published: 6 Feb 2025Last Modified: 22 Sept 2026

    Summary: Timing sidechannel for P-256 on ppc64le in crypto/internal/nistec

    Details: Due to the usage of a variable time instruction in the assembly implementation of an internal function, a small number of bits of secret scalars are leaked on the ppc64le architecture. Due to the way this function is used, we do not believe this leakage is enough to allow recovery of the private key when P-256 is used in any well known protocols.

    References: https://go.dev/cl/643735, https://go.dev/issue/71383, https://groups.google.com/g/golang-announce/c/xU1ZCHUZw3k

    Affected packages

    Package

    Name: stdlib

    Purl: pkg:golang/stdlib

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.22.12

    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