UBUNTU-CVE-2022-2127

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    UBUNTU-CVE-2022-2127

    Published: 19 Jul 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2022-2127
    Aliases:
    USN-6238-1

    Summary:

    Details: An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.

    References: https://ubuntu.com/security/CVE-2022-2127, https://www.samba.org/samba/security/CVE-2022-2127.html, https://ubuntu.com/security/notices/USN-6238-1, https://www.cve.org/CVERecord?id=CVE-2022-2127

    Affected packages

    Package

    Name: samba

    Purl: pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.14.04.20+esm15?arch=source&distro=esm-infra-legacy/trusty

    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-2022-2127 | CVE-DB