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    CVE-2020-14039

    In Go before 1.13.13 and 1.14.x before 1.14.5, Certificate.Verify may lack a check on the VerifyOptions.KeyUsages EKU requirements (if VerifyOptions.Roots equals nil and the installation is on Windows). Thus, X.509 certificate verification is incomplete.

    Published:Jul 17, 2020
    Last Modified:Nov 21, 2024
    EPS:Jul 17, 2020
    EPSS Score:0.0041
    CVSS Score:5.3

    Affected Products

    Vendor
    Golang
    Product
    Go
    Vendor
    Opensuse
    Product
    Leap

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-295 Improper Certificate Validation

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    CVE-2026-39823 (CVSS 6.1) — CVE-2026-27142 fixed a vulnerability in which URLs were not correctly escaped inside of a <meta> tag's <conten…
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    CVE-2026-39817 (CVSS 5.9) — The "go tool pack" subcommand (usually used only by the compiler as an internal tool with known-good inputs) d…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00077.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00082.html
    http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00029.html
    http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00030.html
    https://groups.google.com/forum/#%21forum/golang-announce
    https://groups.google.com/forum/#%21topic/golang-announce/XZNfaiwgt2w
    https://security.netapp.com/advisory/ntap-20200731-0005/
    https://www.oracle.com/security-alerts/cpuApr2021.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00077.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00082.html
    http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00029.html
    http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00030.html
    https://groups.google.com/forum/#%21forum/golang-announce
    https://groups.google.com/forum/#%21topic/golang-announce/XZNfaiwgt2w
    https://security.netapp.com/advisory/ntap-20200731-0005/
    https://www.oracle.com/security-alerts/cpuApr2021.html

    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