CVE-2017-8932

    Dashboard / Vulnerabilities / CVE-2017-8932

    CVE-2017-8932

    Published: 6 Jul 2017Last Modified: 8 Jul 2026

    Summary:

    Details: A bug in the standard library ScalarMult implementation of curve P-256 for amd64 architectures in Go before 1.7.6 and 1.8.x before 1.8.2 causes incorrect results to be generated for specific input points. An adaptive attack can be mounted to progressively extract the scalar input to ScalarMult by submitting crafted points and observing failures to the derive correct output. This leads to a full key recovery attack against static ECDH, as used in popular JWT libraries.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZH4T47ROLZ6YEZBDVXVS2KISTDMXAPS/, https://access.redhat.com/errata/RHSA-2017:1859, https://github.com/golang/go/issues/20040, https://go-review.googlesource.com/c/41070/, https://groups.google.com/d/msg/golang-announce/B5ww0iFt1_Q/TgUFJV14BgAJ, https://bugzilla.redhat.com/show_bug.cgi?id=1455191, http://lists.opensuse.org/opensuse-updates/2017-06/msg00079.html, http://lists.opensuse.org/opensuse-updates/2017-06/msg00080.html, https://github.com/golang/go/commit/9294fa2749ffee7edbbb817a0ef9fe633136fa9c

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.8
    1.8.1

    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