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RUSTSEC-2025-0169
Affected versions of stainless_ffmpeg exposed several safe public methods on FormatContext that accepted a stream_index parameter and used it in unsafe pointer operations without checking whether the index was valid. These methods performed pointer arithmetic and dereferenced the resulting stream pointer. Safe callers could pass a negative or out-of-bounds stream_index, which could cause out-of-bounds pointer access and undefined behavior from safe Rust code.
The issue was fixed in version 0.6.0 by marking the affected stream accessor methods as unsafe and documenting that callers must ensure stream_index is a valid stream index.
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Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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