Denial of Service (DoS) Affecting openssh-portable package, versions [,5.9)


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.47% (76th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSHPORTABLE-2319303
  • published14 Dec 2021
  • disclosed5 Apr 2012
  • creditUnknown

Introduced: 5 Apr 2012

CVE-2011-5000  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade openssh-portable to version 5.9 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant.

CVSS Scores

version 3.1