漏洞信息
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Vulnerability Title
Russh: client wrong-length X25519 `clone_from_slice` panic (pre-auth DoS)
Vulnerability Description
Russh is a Rust SSH client & server library. Prior to 0.62.4, a malicious SSH server can crash a russh client session with a malformed KEX_ECDH_REPLY containing a server ephemeral value that is not 32 bytes long. The client-side Curve25519Kex::compute_shared_secret function in russh/src/kex/curve25519.rs passes the decoded exchange.server_ephemeral value to clone_from_slice without validating its length, causing a deterministic panic before the server host key is verified. The panic terminates the spawned client session task and surfaces as a JoinError, while the embedding process normally remains running. This issue is fixed in version 0.62.4.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vulnerability Type
不正确的类型转换
Vulnerability Title
Eugene Russh 处理逻辑错误漏洞
Vulnerability Description
Eugene Russh是Eugene个人开发者的一个实现SSH协议功能的开发框架。 Eugene Russh 0.62.4之前版本存在安全漏洞,该漏洞源于未验证服务器临时值长度即传递给clone_from_slice,可能导致客户端会话崩溃。
CVSS Information
N/A
Vulnerability Type
N/A