Bug 1360709 (CVE-2016-6254)

Summary:	CVE-2016-6254 collectd: heap overflow in the network plugin
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aortega, apevec, ayoung, chrisw, cvsbot-xmlrpc, gmollett, gregswift, jschluet, jskarvad, kbasil, kevin, lhh, lpeer, mail, markmc, mhlavink, mmagr, mrunge, rbryant, rh, ruben, sclewis, sisharma, slong, srevivo, tdecacqu
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	collectd 5.5.2, collectd 5.4.3	Doc Type:	If docs needed, set a value
Doc Text:	A heap-based buffer overflow flaw was found in collectd's network plugin. The flaw allowed a remote attacker to crash the collectd daemon (denial of service) or possibly execute remote code using a crafted network packet. For this flaw to be exploited, the network plugin must be enabled.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-02-06 05:26:40 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:	1360710, 1360711, 1364915, 1366931, 1366932, 1366933, 1366934, 1395690
Bug Blocks:	1360712

Description Martin Prpič 2016-07-27 11:24:35 UTC

The following flaw was found in collectd:

Emilien Gaspar has identified a heap overflow in collectd's network plugin which can be triggered remotely and is potentially exploitable. The identifier CVE-2016-6254 has been assigned to this issue.

This issue has been fixed in the released 5.5.2 and 5.4.3.

Upstream patches:

https://github.com/collectd/collectd/commit/b589096f907052b3a4da2b9ccc9b0e2e888dfc18
https://github.com/collectd/collectd/commit/8b4fed9940e02138b7e273e56863df03d1a39ef7

The second patch is unrelated to CVE-2016-6254. It fixes an initialization issue with libgcrypt which could theoretically lead to a half-initialized library being used.

Comment 1 Martin Prpič 2016-07-27 11:25:30 UTC

Created collectd tracking bugs for this issue:

Affects: fedora-all [bug 1360710]
Affects: epel-all [bug 1360711]