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CVE-2017-2659

Published: 21 March 2019

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
dropbear
Launchpad, Ubuntu, Debian
upstream
Released (2013.60-1)
precise Does not exist

trusty Does not exist
(trusty was not-affected)
xenial Not vulnerable

bionic Not vulnerable
(2017.75-3build1)
cosmic Not vulnerable

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N