漏洞信息
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Vulnerability Title
etcd: `tlsListener.acceptLoop` spawns unbounded handshake goroutines with no deadline
Vulnerability Description
etcd is a distributed key-value store for the data of a distributed system. Prior to versions 3.5.33, 3.6.14, and 3.7.1, a network attacker who can reach an etcd TLS listener can open many TCP connections and never send a ClientHello. In client/pkg/transport/listener_tls.go, each connection handled by tlsListener.acceptLoop spawns a goroutine that blocks indefinitely inside tls.Conn.Handshake() and remains tracked in the pending map. Unbounded goroutine and map growth can exhaust memory in the etcd process, causing loss of availability for the cluster and, when etcd backs Kubernetes, the control plane. This issue is fixed in versions 3.5.33, 3.6.14, and 3.7.1.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
不加限制或调节的资源分配
Vulnerability Title
etcd-io etcd 资源管理错误漏洞
Vulnerability Description
etcd-io etcd是etcd-io团队的一款分布式键值存储系统。 etcd-io etcd 3.5.33之前版本、3.6.14之前版本和3.7.1之前版本存在资源管理错误漏洞,该漏洞源于TLS握手处理不当,可能导致网络攻击者通过大量TCP连接且不发送ClientHello,造成goroutine和映射无限增长并耗尽内存,导致集群可用性丧失。
CVSS Information
N/A
Vulnerability Type
N/A