Denial of Service (DoS) Affecting openssh-portable package, versions [,6.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
16.51% (97th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSHPORTABLE-2319315
  • published14 Dec 2021
  • disclosed7 Mar 2013
  • creditUnknown

Introduced: 7 Mar 2013

CVE-2010-5107  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade openssh-portable to version 6.2 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). The default configuration of OpenSSH through 6.1 enforces a fixed time limit between establishing a TCP connection and completing a login, which makes it easier for remote attackers to cause a denial of service (connection-slot exhaustion) by periodically making many new TCP connections.

CVSS Base Scores

version 3.1