Description

DNG SDK versions 1.7.1 2502 and earlier are affected by an out-of-bounds write vulnerability that could lead to application denial-of-service. An attacker could leverage this vulnerability to corrupt memory, causing the application to crash or become unresponsive. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.5",
  "pubDate": "2026-08-27T20:17:35.350Z",
  "pubdate": "2026-08-27T20:17:35.350Z",
  "executiveSummary": "DNG SDK versions 1.7.1 2502 and earlier are susceptible to an out-of-bounds (OOB) write vulnerability. This memory corruption flaw is triggered when the application processes a specially crafted malicious file, potentially leading to a denial-of-service (DoS) condition.\nThe vulnerability type is classified as an out-of-bounds write, which allows an attacker to write data beyond the intended boundaries of allocated memory buffers. Successful exploitation results in the corruption of memory, which typically causes the host application to crash, become unstable, or cease responding entirely.\nThe impact is primarily localized to the availability of the application. The exploitation process necessitates active user interaction, specifically requiring a target to open or process a malicious file with the vulnerable DNG SDK component.\nFrom a risk management perspective, this represents a significant stability risk for systems utilizing the DNG SDK for image processing. While the vulnerability primarily serves to induce a crash, improper memory management can occasionally be leveraged for further exploitation, such as code execution, depending on the specific memory layout and the nature of the overflow. The requirement for victim interaction slightly reduces the immediate remote exploitation surface, yet it remains a critical concern for applications handling untrusted user-provided content.",
  "technicalDetails": "The root cause of this vulnerability lies in insufficient boundary validation within the DNG SDK's image parsing or decoding logic. When the SDK processes input data from a DNG file, it allocates memory buffers intended to store decoded image pixels, metadata, or header structures. Due to inadequate bounds checking during the parsing phase, an attacker can supply a malicious DNG file containing specific header fields or data structures that deceive the SDK into performing an out-of-bounds write operation.\nIn the context of an OOB write, the SDK writes data into memory addresses adjacent to the designated buffer. This behavior overwrites critical data structures, such as object pointers, return addresses, or adjacent variables on the heap or stack. Since the SDK lacks proper validation to ensure that the input length corresponds to the allocated destination buffer size, the internal pointers are incremented or indexed in a way that bypasses memory safety boundaries.\nThe attack flow begins when a user is convinced to open or load a malicious file using an application integrated with DNG SDK versions 1.7.1 2502 or earlier. Upon parsing the file, the vulnerable component attempts to process the malformed data. The SDK's internal functions proceed to write data based on values derived from the file header. Because these values are not validated against the actual allocated heap space, the write operation exceeds the buffer capacity. This action corrupts the adjacent memory segments, leading to an immediate segmentation fault or an exception when the application attempts to access the corrupted data segment.\nThere are no authentication or privilege requirements to trigger this vulnerability, as it is a client-side parsing issue. The vulnerability is present in any process linked to the affected DNG SDK library. While the primary identified impact is a denial-of-service through application instability, the memory corruption primitive is theoretically powerful. Post-exploitation impact varies; in many scenarios, the uncontrolled write causes the application to terminate gracefully or crash immediately. However, if the attacker carefully crafts the malicious input, the memory overwrite might be used to influence program control flow. The lack of robust input sanitization within the SDK's file parsing logic remains the primary architectural deficiency facilitating this vulnerability."
}