CVE:CVE-2008-4868
CNNVD:CNNVD-200811-007
FFmpeg r14917之前的0.4.9版本中的avcodec_close函数存在未明漏洞。当被Mplayer使用时，攻击者可以借助与一个空闲的"随机指针"相关的向量，造成未知影响。
solution:Upgrade ffmpeg ffmpeg to a higher version than *:pre1,0.3,0.3.1,0.3.2,0.3.3,0.3.4,0.4.0,0.4.2,0.4.3,0.4.4,0.4.5,0.4.6,0.4.7,0.4.8,and avoid the version *:pre1,0.3,0.3.1,0.3.2,0.3.3,0.3.4,0.4.0,0.4.2,0.4.3,0.4.4,0.4.5,0.4.6,0.4.7,0.4.8