Improper Authentication Affecting dropbear package, versions <2013.60-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.14% (50th percentile)

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  • Snyk IDSNYK-DEBIAN11-DROPBEAR-530438
  • published19 Mar 2019
  • disclosed21 Mar 2019

Introduced: 19 Mar 2019

CVE-2017-2659  (opens in a new tab)
CWE-287  (opens in a new tab)
CWE-209  (opens in a new tab)

How to fix?

Upgrade Debian:11 dropbear to version 2013.60-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dropbear package and not the dropbear package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.