UBUNTU-CVE-2019-17455

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    UBUNTU-CVE-2019-17455

    Published: 10 Oct 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-17455

    Summary:

    Details: Libntlm through 1.5 relies on a fixed buffer size for tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse read and write operations, as demonstrated by a stack-based buffer over-read in buildSmbNtlmAuthRequest in smbutil.c for a crafted NTLM request.

    References: https://ubuntu.com/security/CVE-2019-17455, https://gitlab.com/jas/libntlm/issues/2, https://ubuntu.com/security/notices/USN-5108-1, https://www.cve.org/CVERecord?id=CVE-2019-17455, https://ubuntu.com/security/notices/USN-5108-2

    Affected packages

    Package

    Name: libntlm

    Purl: pkg:deb/ubuntu/[email protected]~esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4-1ubuntu0.1~esm1

    Affected versions

    1.4-1

    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-2019-17455 | CVE-DB