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Security Features Affecting openssh package, versions <1:7.2p1-1

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.37% (73rd percentile)
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NVD
9.8 critical
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Red Hat
4.6 medium

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  • Snyk ID SNYK-DEBIAN11-OPENSSH-518115
  • published 11 Apr 2017
  • disclosed 11 Apr 2017
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Introduced: 11 Apr 2017

CVE-2016-1908 Open this link in a new tab
CWE-254 Open this link in a new tab

How to fix?

Upgrade Debian:11 openssh to version 1:7.2p1-1 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.

The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.

References