DEBIAN-CVE-2021-42521

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    DEBIAN-CVE-2021-42521

    Published: 25 Aug 2022Last Modified: 1 Sept 2026
    Upstream:

    Summary:

    Details: There is a NULL pointer dereference vulnerability in VTK before 9.2.5, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn't check the return value of libxml2 API 'xmlDocGetRootElement', and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.

    Affected packages

    Package

    Name: vtk9

    Purl: pkg:deb/debian/vtk9?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    9.1.0+really9.1.0+dfsg2-5
    9.1.0+really9.1.0+dfsg2-5+deb12u1
    9.1.0+really9.1.0+dfsg2-6
    9.1.0+really9.1.0+dfsg2-7
    9.1.0+really9.1.0+dfsg2-7.1
    9.1.0+really9.1.0+dfsg2-8

    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
    DEBIAN-CVE-2021-42521 | CVE-DB