Excessive CPU utilization when closing HTTP/2 streams

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions envoy’s procedure for resetting a HTTP/2 stream has O(N^2) complexity, leading to high CPU utilization when a large number of streams are reset. Deployments are susceptible to Denial of Service when Envoy is configured with high limit on H/2 concurrent streams. An attacker wishing to exploit this vulnerability would require a client opening and closing a large number of H/2 streams. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to reduce time complexity of resetting HTTP/2 streams. As a workaround users may limit the number of simultaneous HTTP/2 dreams for upstream and downstream peers to a low number, i.e. 100.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

过度迭代

EARCLINK ESPCMS SQL注入漏洞

洪湖尔创网联信息技术 EARCLINK ESPCMS是中国洪湖尔创网联信息技术公司的一套企业建站系统。 EARCLINK ESPCMS-P8的espcms_web/Search.php组件存在SQL注入漏洞，攻击者可利用该漏洞访问敏感的数据库信息。

N/A

SQL注入