جزئیات آسیب‌پذیری

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russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. Prior to 0.65.0, russh::keys::agent::server::serve in russh/src/keys/agent/server.rs accepts repeated SSH_AGENT_CONSTRAIN_CONFIRM records while adding a key and appends every Constraint::Confirm record to the key's retained constraint vector without a count or memory limit. A process that can connect to the agent socket, including the remote side of a forwarded agent session, can repeatedly add constrained keys and cause renewable memory growth that persists for the process lifetime because keys without a lifetime constraint do not expire. This issue is fixed in version 0.65.0.

• https://github.com/Eugeny/russh/commit/23aa5d28fe9601c5bdfe9e60b7ec5d4f882c3de6 x_refsource_MISC
• https://github.com/Eugeny/russh/releases/tag/v0.65.0 x_refsource_MISC
• https://github.com/Eugeny/russh/security/advisories/GHSA-9wfm-jcj8-jfv9 x_refsource_CONFIRM