Dangerous vulnerabilities in H.264 decoders. [Research Saturday]
CyberWire Daily
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The Challenges of H.264 Encoded Videos
H.264 encoded videos can be difficult to work with because they are encoded at the bit level, meaning that traditional fuzzers like AFL couldn't set a particular syntax element to a chosen value. So what our tool aims to do is just change one particular element, but keep everything else the same. And it's more on how the decoder uses those values, where the issues arise. The codec itself has not remained dormant since it first came around in the early 2000s. These so many years, they keep adding new stuff to it, new updates.
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