View at Official debian advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2017-2659 not yet assigned priority: Debian including 1 source packages (dropbear), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.
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.