CVE-2021-3847

    Dashboard / Vulnerabilities / CVE-2021-3847

    CVE-2021-3847

    Published: 1 Apr 2022Last Modified: 14 Mar 2026

    Summary:

    Details: An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a capable file from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system.

    References: https://www.openwall.com/lists/oss-security/2021/10/14/3, https://bugzilla.redhat.com/show_bug.cgi?id=2009704

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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
    CVE-2021-3847 | CVE-DB