Out-of-bounds array access vulnerability in FFmpeg's ff_sbr_apply function

CVE-2015-6820 · HIGH Severity

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

The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted AAC data.

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