GO-2021-0070

    Dashboard / Vulnerabilities / GO-2021-0070

    GO-2021-0070

    Published: 14 Apr 2021Last Modified: 4 Feb 2026

    Summary: Privilege escalation in github.com/opencontainers/runc

    Details: GetExecUser in the github.com/opencontainers/runc/libcontainer/user package will improperly interpret numeric UIDs as usernames. If the method is used without verifying that usernames are formatted as expected, it may allow a user to gain unexpected privileges.

    References: https://github.com/opencontainers/runc/pull/708, https://github.com/opencontainers/runc/commit/69af385de62ea68e2e608335cffbb0f4aa3db091, https://github.com/docker/docker/issues/21436, http://rhn.redhat.com/errata/RHSA-2016-1034.html, http://rhn.redhat.com/errata/RHSA-2016-2634.html, https://security.gentoo.org/glsa/201612-28

    Affected packages

    Package

    Name: github.com/opencontainers/runc

    Purl: pkg:golang/github.com/opencontainers/runc

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.1.0

    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-2021-0070 | CVE-DB