CVE-2022-23585: TensorFlow memory leak when decoding invalid PNG images

Summary

TensorFlow's PNG decoder leaks memory when it processes an invalid image. In several error cases, the OP_REQUIRES macro ends png::CommonInitDecode(..., &decode) execution before png::CommonFreeDecode(&decode) can free the buffers it allocated. The fix ships in TensorFlow 2.8.0, with backports to 2.7.1, 2.6.3, and 2.5.3.

Mitigation

Fixed in TensorFlow 2.8.0. The fix will also be cherry-picked to TensorFlow 2.7.1, 2.6.3, and 2.5.3.

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

• tensorflowPyPINo LLM dependency detected · 26 tracked dependents
• tensorflow-gpuPyPINo LLM dependency detected · 2 tracked dependents

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