UBUNTU-CVE-2018-7456

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    UBUNTU-CVE-2018-7456

    Published: 24 Feb 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-7456
    Aliases:
    USN-3864-1

    Summary:

    Details: A NULL Pointer Dereference occurs in the function TIFFPrintDirectory in tif_print.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 when using the tiffinfo tool to print crafted TIFF information, a different vulnerability than CVE-2017-18013. (This affects an earlier part of the TIFFPrintDirectory function that was not addressed by the CVE-2017-18013 patch.)

    References: https://ubuntu.com/security/CVE-2018-7456, https://github.com/xiaoqx/pocs/tree/master/libtiff, https://ubuntu.com/security/notices/USN-3864-1, https://www.cve.org/CVERecord?id=CVE-2018-7456

    Affected packages

    Package

    Name: tiff

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.0.3-7ubuntu0.10

    Affected versions

    4.0.2-4ubuntu3
    4.0.3-5ubuntu1
    4.0.3-6
    4.0.3-6ubuntu1
    4.0.3-7
    4.0.3-7ubuntu0.1
    4.0.3-7ubuntu0.2
    4.0.3-7ubuntu0.3
    4.0.3-7ubuntu0.4
    4.0.3-7ubuntu0.6
    4.0.3-7ubuntu0.7
    4.0.3-7ubuntu0.8
    4.0.3-7ubuntu0.9

    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-2018-7456 | CVE-DB