NULL Pointer Dereference Affecting vtk9 package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.2% (59th percentile)

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  • Snyk IDSNYK-DEBIAN11-VTK9-2993061
  • published26 Aug 2022
  • disclosed25 Aug 2022

Introduced: 25 Aug 2022

CVE-2021-42521  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 vtk9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vtk9 package and not the vtk9 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1