CyberRota Analysis
AI-GeneratedFFmpeg versions from 0.5 to just below 9.0 are vulnerable to an uninitialized heap memory disclosure in the TIFF decoder, which can be exploited by attackers through specially crafted TIFF files. This vulnerability may lead to the exposure of sensitive data from previous heap allocations, posing a risk to applications that utilize FFmpeg for image processing. Organizations using affected versions of FFmpeg, particularly those handling sensitive data, should prioritize patching to mitigate potential data leaks.
Original NVD Description
FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c. An attacker who can cause FFmpeg to decode a crafted TIFF file can supply a valid Deflate-compressed strip that terminates successfully after producing fewer bytes than the declared strip requires. The tiff_unpack_zlib() function allocates a heap buffer sized for the full declared strip but copies all declared rows via memcpy() regardless of how many bytes zlib actually decompressed, causing unwritten bytes that can contain stale data from prior heap allocations to be incorporated into decoded image output and potentially exposing sensitive data in persistent services.