DEBIAN-CVE-2026-73489

Source
https://security-tracker.debian.org/tracker/CVE-2026-73489
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73489.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-73489
Upstream
Published
2026-08-13T22:17:26Z
Modified
2026-10-14T16:00:12Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

Russh is a Rust SSH client & server library. Prior to 0.62.4, an authenticated SSH client can cause a denial of service by sending a pty-req channel request with more than 130 terminal-mode records. The parser in russh/src/server/encrypted.rs stores terminal modes in a fixed 130-entry [(Pty::TTY_OP_END, 0); 130] array but continues increasing the mode count, then constructs an out-of-bounds slice and panics before the application pty_request handler runs. The panic terminates the server session task without causing memory corruption. This issue is fixed in version 0.62.4.

References

Affected packages

Debian:14 / rust-russh

Package

Name
rust-russh
Purl
pkg:deb/debian/rust-russh?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.64.1-1

Affected versions

0.*
0.57.1-1
0.57.1-2

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73489.json"