Vulnerabilities > CVE-2021-42521 - NULL Pointer Dereference vulnerability in VTK

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

vtk

CWE-476

NVD

Published: 2022-08-25

Updated: 2024-11-21

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Vtk VTK VTK - VTK VTK 2.4.0 VTK VTK 3.1.1 VTK VTK 3.1.2 VTK VTK 3.2.0 VTK VTK 4.0.2 VTK VTK 4.2.0 VTK VTK 4.2.1 VTK VTK 4.2.2 VTK VTK 4.2.3 VTK VTK 4.2.4 VTK VTK 4.2.5 VTK VTK 4.2.6 VTK VTK 4.4.0 VTK VTK 4.4.1 VTK VTK 4.4.2 VTK VTK 5.0.0 VTK VTK 5.0.1 VTK VTK 5.0.2 VTK VTK 5.0.3 VTK VTK 5.0.4 VTK VTK 5.2.0 VTK VTK 5.2.1 VTK VTK 5.4.0 VTK VTK 5.4.2 VTK VTK 5.6.0 VTK VTK 5.6.1 VTK VTK 5.8.0 VTK VTK 5.10.0 VTK VTK 5.10.1 VTK VTK 6.0.0 VTK VTK 6.1.0 VTK VTK 6.2.0Rc1 VTK VTK 6.3.0 VTK VTK 7.0.0 VTK VTK 7.1.0 VTK VTK 7.1.1 VTK VTK 8.0.0 VTK VTK 8.0.1 VTK VTK 8.1.0 VTK VTK 8.1.1 VTK VTK 8.1.2 VTK VTK 8.2.0 VTK VTK 9.0.0	66

Common Weakness Enumeration (CWE)

CWE-476 - NULL Pointer Dereference

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References