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CVE-2013-4434

Published: 25 October 2013

Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.

Priority

Medium

Status

Package Release Status
dropbear
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
raring Ignored
(end of life)
saucy Ignored
(end of life)
trusty Does not exist
(trusty was not-affected [2013.60-1ubuntu2])
upstream
Released (2013.59)
utopic Not vulnerable
(2013.60-1ubuntu2)
vivid Not vulnerable
(2013.60-1ubuntu2)
wily Not vulnerable
(2013.60-1ubuntu2)
xenial Not vulnerable
(2013.60-1ubuntu2)
yakkety Not vulnerable
(2013.60-1ubuntu2)
zesty Not vulnerable
(2013.60-1ubuntu2)
Patches:
upstream: https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a