CVE:CVE-2020-27824
CNNVD:CNNVD-202012-1200
OpenJPEG是一款基于C语言的开源JPEG2000编码解码器。
OpenJPEG 存在缓冲区错误漏洞，该漏洞源于opj_dwt_calc_explicit_stepsizes函数。攻击者可利用该漏洞可以通过opj dwt计算OpenJPEG的显式stepsizes()来触发缓冲区溢出，以触发拒绝服务，并可能运行代码。
solution:Upgrade uclouvain openjpeg to a higher version than 2.4.0,and avoid the version (,2.4.0); Upgrade redhat enterprise_linux to a higher version than 8.0,and avoid the version 8.0; Upgrade fedoraproject fedora to a higher version than 32,33,and avoid the version 32,33; Upgrade debian debian_linux to a higher version than 9.0,10.0,and avoid the version 9.0,10.0