NULL Pointer Dereference Vulnerability in FFmpeg 4.0.1 AVI to MPEG4 Conversion

CVE-2018-13303 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:N/A:P

In FFmpeg 4.0.1, a missing check for failure of a call to init_get_bits8() in the avpriv_ac3_parse_header function in libavcodec/ac3_parser.c may trigger a NULL pointer dereference while converting a crafted AVI file to MPEG4, leading to a denial of service.

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