Libheif Y4M Loader Bug: Crashing Apps Faster Than a Netflix Binge!
In a plot twist worthy of a tech thriller, libheif v1.21.0’s Y4M loader has been caught red-handed in an integer overflow fiasco. This digital drama unfolds with oversized Y4M files causing memory chaos, and potential DoS crashes. Who knew integers could have such a mischief streak?
Hot Take:
Well, folks, it looks like libheif is having a bit of a Goldilocks moment. When it comes to memory allocation, it’s either way too little or way too much, and the porridge is definitely not just right. Those crafty .y4m files are causing a digital diet disaster, with the potential for crashing apps and memory corruption. You might say it’s a classic case of “buffer, buffer, who’s got the buffer?”
Key Points:
- Integer overflow vulnerability found in libheif’s Y4M input loader.
- Crafted .y4m files with huge dimensions cause uncontrolled memory allocation.
- Potential outcomes include denial of service or memory corruption.
- Proof of concept reveals excessive allocation requests causing application issues.
- AddressSanitizer flags the issue as an “allocation-size-too-big” error.
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