CVE-2026-73429

01/תיאור (מקור, אנגלית)

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.

02/קישורים4

• github.com/Eugeny/russh/commit/a7fc1eb5717264e31c3c5f7dd849b73‮…
• github.com/Eugeny/russh/releases/tag/v0.62.4
• github.com/Eugeny/russh/security/advisories/GHSA-g9hv-x236-4qp3
• github.com/Eugeny/russh/security/advisories/GHSA-g9hv-x236-4qp3