Bug 1516447 (CVE-2017-16820)

Summary:	CVE-2017-16820 collectd: double free in csnmp_read_table function in snmp.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	apevec, bmcclain, chrisw, dblechte, eedri, gregswift, jbadiapa, jjoyce, jschluet, jskarvad, kbasil, kevin, lars, lhh, lpeer, mail, markmc, mburns, mgoldboi, mhlavink, michal.skrivanek, mmagr, mrunge, rbryant, rmccabe, ruben, sbonazzo, sclewis, sherold, sisharma, slinaber, ssaha, tdecacqu, vbellur, ykaul
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	collectd 5.8.0, collectd 5.6.3	Doc Type:	If docs needed, set a value
Doc Text:	A double-free vulnerability was found in the csnmp_read_table function in the SNMP plugin of collectd. A network-based attacker could exploit this by sending malformed data, causing collectd to crash or possibly other impact.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:31:46 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:	1516449, 1516450, 1516451, 1517567, 1517568, 1540409, 1541204, 1550290, 1558823, 1558834, 1558835
Bug Blocks:	1516452

Description Pedro Sampaio 2017-11-22 16:07:48 UTC

The csnmp_read_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is susceptible to a double free in a certain error case, which could lead to a crash (or potentially have other impact).

Upstream bug:

https://github.com/collectd/collectd/issues/2291

Upstream patch:

https://github.com/collectd/collectd/commit/d16c24542b2f96a194d43a73c2e5778822b9cb47

References:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881757

Comment 1 Pedro Sampaio 2017-11-22 16:08:51 UTC

Created collectd tracking bugs for this issue:

Affects: epel-6 [bug 1516449]
Affects: epel-7 [bug 1516450]
Affects: fedora-all [bug 1516451]

Comment 2 Joshua Padman 2017-11-23 05:59:38 UTC

Versions 5.7.x are vulnerable too.

Conditions exist in OSP11/12 package collectd-5.7.2-1.1.el7ost. Still completing analysis.

Comment 3 Joshua Padman 2017-11-24 05:59:18 UTC

Still determining severity for OSP. collectd was tech preview in 7-9 so marking won't fix for those.

Comment 4 Joshua Padman 2017-11-26 22:10:26 UTC

collectd is in tech preview in OSP10 as well, marked accordingly.

Fixing in OSP11-12 partly because the security risk but also as a reasonable use case also has potential to crash the application.

Comment 6 errata-xmlrpc 2018-01-30 21:08:27 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 12.0 Operational Tools for RHEL 7

Via RHSA-2018:0252 https://access.redhat.com/errata/RHSA-2018:0252

Comment 10 errata-xmlrpc 2018-02-13 16:12:39 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 11.0 Operational Tools for RHEL 7

Via RHSA-2018:0299 https://access.redhat.com/errata/RHSA-2018:0299

Comment 13 errata-xmlrpc 2018-03-20 16:35:43 UTC

This issue has been addressed in the following products:

  Red Hat Virtualization 4 for RHEL-7
  Red Hat Virtualization Engine 4.1

Via RHSA-2018:0560 https://access.redhat.com/errata/RHSA-2018:0560

Comment 16 errata-xmlrpc 2018-05-17 15:26:16 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 Operational Tools for RHEL 7

Via RHSA-2018:1605 https://access.redhat.com/errata/RHSA-2018:1605

Comment 18 errata-xmlrpc 2018-09-04 06:39:04 UTC

This issue has been addressed in the following products:

  Red Hat Gluster Storage 3.4 for RHEL 7

Via RHSA-2018:2615 https://access.redhat.com/errata/RHSA-2018:2615