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.
CVE-2017-2659
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 5.3; sources differ by 2.2.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 7.5(medium)
- EPSS
- 71.7%
- KEV
- Not listed
Published
March 21, 2019
Last Modified
November 21, 2024
References (4)
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659
- secalert@redhathttps://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2659
- af854a3a-2127-422b-91ae-364da2661108https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a#l1.86
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-25 17:16 UTCOSV refresh
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Frequently asked(5)
What is CVE-2017-2659?
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What is the CVSS score of CVE-2017-2659?
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Dependency Blast Radius
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