CVE:CVE-2021-3516
CNNVD:CNNVD-202105-231
libxml2是开源的一个用来解析XML文档的函数库。它用C语言写成，并且能为多种语言所调用，例如C语言，C++，XSH。
libxml2 中entities.c存在资源管理错误漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
solution:Upgrade xmlsoft xmllint to a higher version than 2.9.11,and avoid the version (,2.9.11); Upgrade debian debian_linux to a higher version than 9.0,and avoid the version 9.0; Upgrade fedoraproject fedora to a higher version than 33,34,and avoid the version 33,34; Upgrade redhat jboss_core_services to a higher version than -; Upgrade redhat enterprise_linux to a higher version than 6.0,7.0,8.0,and avoid the version 6.0,7.0,8.0; Upgrade netapp clustered_data_ontap to a higher version than -; Upgrade netapp clustered_data_ontap_antivirus_connector to a higher version than -; Upgrade netapp ontap_select_deploy_administration_utility to a higher version than -; Upgrade oracle zfs_storage_appliance_kit to a higher version than 8.8,and avoid the version 8.8