Bug 1344615 (CVE-2016-4303)

Summary:	CVE-2016-4303 iperf3: JSON parsing vulnerability
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:	balajig81, carnil, kevin, strobert
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	iperf3 3.0.12	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:54:49 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:	1344616, 1344617
Bug Blocks:

Description Andrej Nemec 2016-06-10 07:45:18 UTC

A bug exists in the way that the included version of the cjson library
handles Unicode literals in JSON string constants.  A malformed
Unicode literal can cause a process parsing a block of JSON to
overwrite a pre-allocated buffer in the heap.  Note that this bug has
already been fixed in recent versions of cjson.

A malicious process can connect to an iperf3 server and, by sending a
malformed message on the control channel, corrupt the server process's
heap area.  This can lead to a crash (and a denial of service), or
theoretically a remote code execution as the user running the iperf3
server.  A malicious iperf3 server could potentially mount a similar
attack on an iperf3 client.

External references:

https://raw.githubusercontent.com/esnet/security/master/cve-2016-4303/esnet-secadv-2016-0001.txt.asc

Comment 1 Andrej Nemec 2016-06-10 07:45:57 UTC

Created iperf3 tracking bugs for this issue:

Affects: fedora-all [bug 1344616]
Affects: epel-all [bug 1344617]

Comment 2 Fedora Update System 2016-06-18 04:24:39 UTC

iperf3-3.1.3-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 3 Fedora Update System 2016-06-18 18:37:08 UTC

iperf3-3.1.3-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-06-24 21:17:02 UTC

iperf3-3.1.3-1.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-06-24 21:19:11 UTC

iperf3-3.0.12-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Product Security DevOps Team 2019-06-08 02:54:49 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.