CVE:CVE-2016-7972
CNNVD:CNNVD-201702-806
libass是一个用于SSA/ASS（Advanced Substation Alpha/Substation Alpha）字幕渲染的可移植库。
libass 0.13.3及之前的版本中的libass/ass_shaper.c文件的‘check_allocations’函数存在安全漏洞。远程攻击者可利用该漏洞造成拒绝服务（内存分配失败）。
solution:Upgrade opensuse leap to a higher version than 42.1,and avoid the version 42.1; Upgrade opensuse opensuse to a higher version than 13.2,and avoid the version 13.2; Upgrade fedoraproject fedora to a higher version than 23,24,25,and avoid the version 23,24,25; Upgrade libass_project libass to a higher version than 0.13.3,and avoid the version (,0.13.3]