Bug 1017983 (CVE-2013-4421) - CVE-2013-4421 dropbear: memory exhaustion DoS via large decompressed payloads
Summary: CVE-2013-4421 dropbear: memory exhaustion DoS via large decompressed payloads
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-4421
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1017985 1017986
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-10-10 22:08 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:
Environment:
Last Closed: 2013-11-04 08:55:54 UTC


Attachments (Terms of Use)

Description Vincent Danen 2013-10-10 22:08:51 UTC
It was reported [1] that versions of dropbear prior to 2013.59 suffered from a flaw where large decompressed payloads could cause memory exhaustion, resulting in a denial of service.

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/0bf76f54de6f
[3] http://www.openwall.com/lists/oss-security/2013/10/10/15

Comment 1 Vincent Danen 2013-10-10 22:11:34 UTC
Created dropbear tracking bugs for this issue:

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

Comment 2 Fedora Update System 2013-10-18 19:48:06 UTC
dropbear-2013.59-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2013-10-18 19:53:12 UTC
dropbear-2013.59-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2013-10-25 17:38:39 UTC
dropbear-2013.59-1.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.


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