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Improper Encoding or Escaping of Output Affecting openssh package, versions <1:7.9p1-6

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Confidentiality High
    Integrity High

    Threat Intelligence

    EPSS 0.24% (65th percentile)
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NVD
6.8 medium
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SUSE
4.6 medium
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Red Hat
3.1 low

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  • Snyk ID SNYK-DEBIAN11-OPENSSH-518989
  • published 15 Jan 2019
  • disclosed 31 Jan 2019
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Introduced: 15 Jan 2019

CVE-2019-6109 Open this link in a new tab
CWE-116 Open this link in a new tab

How to fix?

Upgrade Debian:11 openssh to version 1:7.9p1-6 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 Debian. See How to fix? for Debian:11 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.

References