CVE-2026-41216
Description
A flaw was found in vtk. An invalid pointer dereference in the vtkPNGReader component allows a remote attacker to cause a Denial of Service (DoS) by supplying a specially crafted PNG image file. When the application attempts to process the malicious file, it crashes unexpectedly.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the uninitialized pointer is used in a read operation, it might not point to a valid memory location. An attacker might be able to read sensitive portions of memory.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
If the uninitialized pointer references a memory location that is not accessible to the product, or points to a location that is "malformed" (such as NULL) or larger than expected by a read or write operation, then a crash may occur.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
If the uninitialized pointer is used in a function call, or points to unexpected data in a write operation, then code execution may be possible. If the uninitialized pointer is used as a function call, then arbitrary functions could be invoked.
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