DEBIAN-CVE-2026-102821
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-102821
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102821.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-102821
- Upstream
- Published
- 2026-09-29T19:17:23Z
- Modified
- 2026-10-14T16:00:05Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Russh is a Rust SSH client and server library. Prior to 0.63.2, an authenticated remote peer can send SSH_MSG_KEXINIT without the required SSH_MSG_KEX_ECDH_INIT and then flood SSH_MSG_CHANNEL_OPEN messages while SessionKexState::InProgress prevents priority_receiver in russh/src/server/session.rs from being drained. The server continues processing network input and enqueues a ChannelOpenReply for each request on an unbounded channel, allowing one connection to grow memory until the process is terminated. This issue is fixed in version 0.63.2.
- References
Affected packages
Debian:14 / rust-russh
Package
- Name
- rust-russh
- Purl
- pkg:deb/debian/rust-russh?arch=source&distro=forky