CVE:CVE-2021-38593
CNNVD:CNNVD-202108-1159
Qt  QLibrary是一个代码框架，QLibrary是他的一个库。
Qt  QLibrary 存在缓冲区错误漏洞，该漏洞源于QOutlineMapper::convertPath中有一个越界写入(从QRasterPaintEngine::fill和QPaintEngineEx::stroke调用)。
solution:Upgrade qt qt to a higher version than 5.15.6,6.1.2,and avoid the version [5.0.0,5.15.6),[6.0.0,6.1.2]; Upgrade fedoraproject fedora to a higher version than 35,36,and avoid the version 35,36