UBUNTU-CVE-2021-20251

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    UBUNTU-CVE-2021-20251

    Published: 27 Oct 2022Last Modified: 28 Jul 2026
    Upstream:
    CVE-2021-20251
    Aliases:
    USN-5822-1

    Summary:

    Details: A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.

    References: https://ubuntu.com/security/CVE-2021-20251, https://gitlab.com/samba-team/samba/-/merge_requests/2708, https://ubuntu.com/security/notices/USN-5822-1, https://www.cve.org/CVERecord?id=CVE-2021-20251

    Affected packages

    Package

    Name: samba

    Purl: pkg:deb/ubuntu/samba?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2:3.6.18-1ubuntu3

    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-2021-20251 | CVE-DB