UBUNTU-CVE-2018-20751

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    UBUNTU-CVE-2018-20751

    Published: 4 Feb 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-20751

    Summary:

    Details: An issue was discovered in crop_page in PoDoFo 0.9.6. For a crafted PDF document, pPage->GetObject()->GetDictionary().AddKey(PdfName("MediaBox"),var) can be problematic due to the function GetObject() being called for the pPage NULL pointer object. The value of pPage at this point is 0x0, which causes a NULL pointer dereference.

    References: https://ubuntu.com/security/CVE-2018-20751, https://sourceforge.net/p/podofo/tickets/33/, https://sourceforge.net/p/podofo/code/1954, https://research.loginsoft.com/bugs/null-pointer-dereference-vulnerability-in-crop_page-podofo-0-9-6/, https://www.cve.org/CVERecord?id=CVE-2018-20751

    Affected packages

    Package

    Name: libpodofo

    Purl: pkg:deb/ubuntu/[email protected]~esm3?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.9.0-1.1ubuntu1
    0.9.0-1.2
    0.9.0-1.2ubuntu0.1~esm1
    0.9.0-1.2ubuntu0.1~esm3

    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