CVE-2019-6109

openssh: Missing character encoding in progress display allows for spoofing of scp client output

Published Jan 31, 2019 CVSS 3.1 · 6.8 Medium EPSS 3.8% KEV · Not listed
Description
An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1728-1 openssh security update
Debian DSA Debian DSA DSA-4387-1 openssh security update
EUVD EUVD EUVD-2019-15676 An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.
Ubuntu USN Ubuntu USN USN-3885-1 OpenSSH vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses
  • CWE-116

    Improper Encoding or Escaping of Output

  • CWE-451

    User Interface (UI) Misrepresentation of Critical Information

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 6:40 AM
Reserved
Jan 10, 2019, 12:00 AM
Status
Modified
Published
Jan 31, 2019, 6:29 PM
Modified
Oct 14, 2026, 7:16 AM
Severity
Low
Public date
Nov 16, 2018, 12:00 AM