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Resource Management Errors Affecting openssh package, versions <1:7.3p1-2

0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 78.35% (99th percentile)
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NVD
7.5 high
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Red Hat
5.8 medium

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  • Snyk ID SNYK-DEBIAN11-OPENSSH-527983
  • published 9 Dec 2016
  • disclosed 9 Dec 2016
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Introduced: 9 Dec 2016

CVE-2016-8858 Open this link in a new tab
CWE-399 Open this link in a new tab

How to fix?

Upgrade Debian:11 openssh to version 1:7.3p1-2 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 kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."

References