Bug 1017982 (CVE-2013-4434) - CVE-2013-4434 dropbear: user disclosure via authentication failure delays
Summary: CVE-2013-4434 dropbear: user disclosure via authentication failure delays
Alias: CVE-2013-4434
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1017985 1017986
TreeView+ depends on / blocked
Reported: 2013-10-10 22:05 UTC by Vincent Danen
Modified: 2019-09-29 13:09 UTC (History)
4 users (show)

Fixed In Version: dropbear 2013.59
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-11-04 08:42:28 UTC

Attachments (Terms of Use)

Description Vincent Danen 2013-10-10 22:05:42 UTC
It was reported [1] that versions of dropbear prior to 2013.59 suffered from a flaw where it would disclose the existence of valid users due to inconsistent delays on authentication failures.

This has been fixed in git [2].  A CVE assignment is pending [3].

[1] https://matt.ucc.asn.au/dropbear/CHANGES
[2] https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a
[3] http://www.openwall.com/lists/oss-security/2013/10/10/15

Comment 1 Vincent Danen 2013-10-10 22:10:34 UTC
Created dropbear tracking bugs for this issue:

Affects: fedora-all [bug 1017985]
Affects: epel-all [bug 1017986]

Comment 2 Christopher Meng 2013-11-03 12:17:07 UTC
Can I close it now?

Comment 3 Tomas Hoger 2013-11-04 08:42:28 UTC
Closing, thank you!

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