NULL pointer dereference in Visualization Toolkit (VTK) - CVE-2021-42521
Published: August 20, 2023
Vulnerability identifier: #VU79738
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-42521
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in IO/Infovis/vtkXMLTreeReader.cxx. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
Visualization Toolkit (VTK)
Fedora
vtk
Fedora
vtk
How to mitigate CVE-2021-42521
Install updates from vendor's website.
Visualization Toolkit (VTK) - update to 9.2.5
vtk - addressed in versions 9.0.1-10.el8, 9.1.0-18.el9, 9.1.0-18.fc37
vtk - addressed in versions 9.0.1-10.el8, 9.1.0-18.el9, 9.1.0-18.fc37