UBUNTU-CVE-2021-34558

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    UBUNTU-CVE-2021-34558

    Published: 15 Jul 2021Last Modified: 24 Oct 2025
    Upstream:
    CVE-2021-34558

    Summary:

    Details: The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.

    References: https://ubuntu.com/security/CVE-2021-34558, https://github.com/golang/go/issues/47143, https://github.com/golang/go/commit/58bc454a11d4b3dbc03f44dfcabb9068a9c076f4, https://groups.google.com/g/golang-announce, https://groups.google.com/g/golang-announce/c/n9FxMelZGAQ, https://golang.org/doc/devel/release#go1.16.minor, https://www.cve.org/CVERecord?id=CVE-2021-34558

    Affected packages

    Package

    Name: golang-1.10

    Purl: pkg:deb/ubuntu/[email protected]~14.04.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.10.4-2ubuntu1~14.04.1

    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
    UBUNTU-CVE-2021-34558 | CVE-DB