Improper Encoding or Escaping of Output Affecting openssh package, versions <7.9_p1-r3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
9.74% (93rd percentile)

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  • Snyk IDSNYK-ALPINE312-OPENSSH-588167
  • published15 Jan 2019
  • disclosed31 Jan 2019

Introduced: 15 Jan 2019

CVE-2019-6109  (opens in a new tab)
CWE-116  (opens in a new tab)

How to fix?

Upgrade Alpine:3.12 openssh to version 7.9_p1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Alpine. See How to fix? for Alpine:3.12 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1