Bug 1418608 (CVE-2016-10195)

Summary:	CVE-2016-10195 libevent: Stack-buffer overflow in the name_parse() function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cschalle, gecko-bugs-nobody, jfeeney, jhorak, rdma-dev-team, steved, stransky, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in libevent with the parsing of DNS requests and replies. An attacker could send a forged DNS response to an application using libevent which could lead to reading data out of bounds on the heap, potentially disclosing a small amount of application memory.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-03-24 04:59:36 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:	1418616
Bug Blocks:	1418615

Description Andrej Nemec 2017-02-02 10:30:38 UTC

A vulnerability was found in libevent. The name_parse() function in libevent's DNS code is vulnerable to a buffer overread.

Upstream bug:

https://github.com/libevent/libevent/issues/317

Upstream patch:

https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d

Comment 1 Andrej Nemec 2017-02-02 10:41:04 UTC

Created libevent tracking bugs for this issue:

Affects: fedora-all [bug 1418616]

Comment 6 errata-xmlrpc 2017-05-08 06:46:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:1201 https://access.redhat.com/errata/RHSA-2017:1201