Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Libav 安全漏洞
Vulnerability Description
Libav（前身是FFmpeg）是Libav团队的一套跨平台的可对音频和视频进行录制、转换的解决方案，它包含了一个libavcodec编码器。 Libav 11.11及之前的版本和12.x版本至12.1版本中的libavcodec/smacker.c文件的‘smacker_decode_tree’函数存在安全漏洞，该漏洞源于程序没有正确的限制树递归。远程攻击者可借助特制的Smacker流利用该漏洞造成拒绝服务（‘bitstream.c:build_table()’函数越边界读取和应用程序崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A