CVE:CVE-2021-36740
CNNVD:CNNVD-202107-986
Varnish Cache是一套反向网站缓存服务器。
Varnish Enterprise 存在安全漏洞，该漏洞源于启用 HTTP/2 的 Varnish 缓存允许通过 POST 请求的大型 Content-Length 标头进行请求走私和VCL授权绕过。以下产品及版本受到影响：Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8。
solution:Upgrade varnish-cache varnish_cache to a higher version than 6.0.8,6.0.8:r1,6.0.8:r2,and avoid the version [6.0.0,6.0.8),6.0.8:r1,6.0.8:r2; Upgrade varnish-software varnish_cache to a higher version than 6.0.5,6.0.7,and avoid the version [6.0.0,6.0.5],[6.0.0,6.0.7]; Upgrade varnish_cache_project varnish_cache to a higher version than 5.2.1,6.6.0,and avoid the version [5.0.0,5.2.1],[6.1.0,6.6.0]; Upgrade fedoraproject fedora to a higher version than 33,34,and avoid the version 33,34; Upgrade debian debian_linux to a higher version than 10.0,11.0,and avoid the version 10.0,11.0