Description

Improper Validation of Specified Quantity in Input vulnerability in Samsung Open Source rlottie allows Input Data Manipulation.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "6.5",
  "pubDate": "2026-08-11T07:17:29.883Z",
  "pubdate": "2026-08-11T07:17:29.883Z",
  "executiveSummary": "An improper validation of specified quantity in input vulnerability exists within the Samsung Open Source rlottie component. This security flaw enables threat actors to execute input data manipulation attacks against affected systems. The primary impact of this vulnerability involves the potential compromise of data integrity and application stability, which may lead to application crashes or unexpected execution behaviors depending on how the parsed data is handled downstream. The affected product is Samsung Open Source rlottie, a popular library used for rendering Lotties vector graphics and animations. The risk implications include potential denial of service conditions or arbitrary memory corruption if manipulated quantities are utilized in buffer allocation or sizing calculations. Attacker capabilities rely on supplying maliciously crafted input data containing invalid or out-of-range quantities to the parsing engine. Exploitation typically requires the target application to process untrusted animation files containing the malformed quantity parameters. The vulnerability highlights a lack of rigorous bounds checking and input sanitization within the numeric quantity validation routines of the rlottie parser, necessitating prompt remediation to prevent downstream exploitation.",
  "technicalDetails": "The vulnerability stems from insufficient validation of specified quantity parameters during the parsing of input data within the Samsung Open Source rlottie library. Specifically, the root cause lies in the parsers failure to adequately verify that input quantities fall within expected mathematical and structural boundaries before allocating resources or performing arithmetic operations based on those values. When an application utilizes rlottie to process a maliciously crafted animation file, the parser ingests the input stream containing manipulated quantity fields. Because the input validation logic fails to enforce strict range checks, the oversized or otherwise invalid quantity values are accepted and propagated into subsequent processing functions. This improper validation can lead to integer overflows, underflows, or miscalculated buffer sizes when the application attempts to allocate memory or iterate through data structures based on the untrusted quantity. The attack flow begins when an unauthenticated user or external data source supplies the malicious input file to a component integrating the rlottie library. As the parsing engine processes the structural elements, it encounters the improperly validated quantity field. The lack of robust sanitization allows the manipulated data to dictate internal loop counters, array indices, or memory allocation sizes. Depending on the exact execution context, this can trigger heap or stack-based buffer overflows, out-of-bounds reads or writes, or application termination resulting in a denial of service. The vulnerable component is the input parsing and data handling subsystem of Samsung Open Source rlottie. Exploitation does not inherently require authentication or high privileges, provided the application exposes an interface that processes untrusted rlottie files over a network or via local file ingestion. The post-exploitation impact ranges from localized application crashes causing denial of service to potential arbitrary code execution if memory corruption primitives can be reliably leveraged by a sophisticated attacker."
}