[From nobody Wed Oct  7 00:37:08 2026
Received: (at submit) by bugs.debian.org; 14 Aug 2026 15:33:40 +0000
X-Spam-Checker-Version: SpamAssassin 4.0.1-bugs.debian.org_2005_01_02
 (2024-03-25) on buxtehude.debian.org
X-Spam-Level: 
X-Spam-Status: No, score=-10.9 required=4.0 tests=BAYES_00,FOURLA,
 FROMDEVELOPER,FVGT_m_MULTI_ODD,MD5_SHA1_SUM,NO_RELAYS,
 XMAILER_REPORTBUG autolearn=ham autolearn_force=no
 version=4.0.1-bugs.debian.org_2005_01_02
X-Spam-Bayes: score:0.0000 Tokens: new, 27; hammy, 149; neutral, 51; spammy,
 1. spammytokens:0.940-+--H*r:bugs.debian.org
 hammytokens:0.000-+--XDebbugsCc, 0.000-+--X-Debbugs-Cc,
 0.000-+--H*F:U*carnil, 0.000-+--H*Ad:N*Bug, 0.000-+--HTo:N*Debian
Return-path: <carnil@debian.org>
Received: via submission by buxtehude.debian.org with esmtp (Exim 4.96)
 (envelope-from <carnil@debian.org>) id 1wutud-003S0w-2F
 for submit@bugs.debian.org; Fri, 14 Aug 2026 15:33:40 +0000
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: rust-russh: CVE-2026-73489
Message-ID: <178672161759.1210716.7713974119244437312.reportbug@eldamar.lan>
X-Mailer: reportbug 13.2.0+nmu1
Date: Fri, 14 Aug 2026 17:33:37 +0200
Delivered-To: submit@bugs.debian.org

Source: rust-russh
Version: 0.57.1-2
Severity: grave
Tags: security upstream
Justification: user security hole
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for rust-russh.

CVE-2026-73489[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-73489
    https://www.cve.org/CVERecord?id=CVE-2026-73489
[1] https://github.com/Eugeny/russh/security/advisories/GHSA-cqjc-rmpq-xprq
[2] https://github.com/Eugeny/russh/commit/8912512371820167a12a0a638bd666856ce458ad 

Regards,
Salvatore
]