Bug 1316825 (CVE-2016-3116)

Summary:	CVE-2016-3116 dropbear: X11 forwarding input not validated properly
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	buytenh, i, itamar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	dropbear 2016.72	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:49:38 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1316826, 1316827
Bug Blocks:

Description Andrej Nemec 2016-03-11 08:57:50 UTC

A vulnerability was found in a way dropbear processed X11 forwarding input. By using a specially crafted request, an attacker could bypass the authorized_keys command restrictions.

External references:

https://matt.ucc.asn.au/dropbear/CHANGES

CVE assignment:

http://seclists.org/oss-sec/2016/q1/593

Comment 1 Andrej Nemec 2016-03-11 08:58:33 UTC

Created dropbear tracking bugs for this issue:

Affects: fedora-all [bug 1316826]
Affects: epel-all [bug 1316827]

Comment 2 Product Security DevOps Team 2019-06-08 02:49:38 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.