CVE-2017-2659

Name	CVE-2017-2659
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
dropbear (PTS)	jessie, jessie (lts)	2014.65-1+deb8u3	fixed
	stretch	2016.74-5+deb9u1	fixed
	buster (security), buster, buster (lts)	2018.76-5+deb10u2	fixed
	bullseye	2020.81-3+deb11u2	fixed
	bookworm	2022.83-1+deb12u2	fixed
	sid, trixie	2024.86-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
dropbear	source	wheezy	(unfixed)	end-of-life
dropbear	source	(unstable)	2013.60-1

https://hg.ucc.asn.au/dropbear/rev/d7784616409a#l1.86