CVE-2021-42521

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Published Aug 25, 2022 CVSS 3.1 · 7.5 High EPSS 1.4% KEV · Not listed

Description

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 Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

vtk

affected

Version	Status	Constraints
`VTK - 9.0.0 and before`	affected	—

Configuration 1 [-]

cpe:2.3:a:vtk:vtk:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-0352	There is a NULL pointer dereference vulnerability in VTK, 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.
Github GHSA	GHSA-xfhg-9pjg-xg7g	VTK NULL pointer dereference vulnerability

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 1.4% (1.355% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549
https://gitlab.kitware.com/vtk/vtk/issues/17818
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PCTMSAAVP4BW2HTZLDWMGKZ2WEC5OFLK/

History

No history.

Subscriptions

Vtk Vtk

Weaknesses

Sources

CVE record Updated: Aug 4, 2024, 3:30 AM

Status: PUBLISHED
Assigner: fedora
Published: Aug 25, 2022, 12:00 AM
Updated: Aug 4, 2024, 3:30 AM
Reserved: Oct 15, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:09 AM

Status: Modified
Published: Aug 25, 2022, 6:15 PM
Modified: Jun 17, 2026, 4:09 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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