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Out-of-bounds Write

CVE-2025-59730

Medium
5.7/10

Summary

When decoding a frame for a "SANM" file (ANIM v0 variant), the decoded data can be larger than the buffer allocated for it. Frames encoded with "codec 48" can specify their resolution (width x height). A buffer of appropriate size is allocated depending on the resolution. This codec can encode the frame contents using a run-length encoding algorithm. There are no checks that the decoded frame fits in the allocated buffer, leading to a Heap-Buffer-Overflow. "process_frame_obj" initializes the buffers based on the frame resolution.

  • HIGH
  • ADJACENT NETWORK
  • PASSIVE
  • LOW

CWE-787 - Out-of-Bounds Write

Out-of-bounds write vulnerability is a memory access bug that allows software to write data past the end or before the beginning of the intended buffer. This may result in the corruption of data, a crash, or arbitrary code execution.

References

Advisory Timeline

  • Published