CVE:CVE-2011-3974
CNNVD:CNNVD-201110-007
FFmpeg是FFmpeg团队的一套可录制、转换以及流化音视频的完整解决方案。
FFmpeg 0.7.4之前版本以及0.8.3之前0.8.x版本中的libavcodec中的cavsdec.c的decode_residual_inter函数中存在整数符号错误。远程攻击者可借助Chinese AVS video (也称为CAVS)文件中的无效比特流导致拒绝服务（不正确的写操作和应用程序崩溃）。
solution:Upgrade ffmpeg ffmpeg to a higher version than 0.7.3,0.3,0.3.1,0.3.2,0.3.3,0.3.4,0.4.0,0.4.2,0.4.3,0.4.4,0.4.5,0.4.6,0.4.7,0.4.8,0.4.9:pre1,0.5,0.5.1,0.5.2,0.5.3,0.5.4,0.6,0.6.1,0.6.2,0.7.1,0.7.2,0.8.0,0.8.1,0.8.2,and avoid the version (,0.7.3],0.3,0.3.1,0.3.2,0.3.3,0.3.4,0.4.0,0.4.2,0.4.3,0.4.4,0.4.5,0.4.6,0.4.7,0.4.8,0.4.9:pre1,0.5,0.5.1,0.5.2,0.5.3,0.5.4,0.6,0.6.1,0.6.2,0.7.1,0.7.2,0.8.0,0.8.1,0.8.2