Bug 1486400 (CVE-2017-13711)

Summary:	CVE-2017-13711 QEMU: Slirp: use-after-free when sending response
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ailan, amit, apevec, areis, berrange, cfergeau, chrisw, cvsbot-xmlrpc, ddepaula, drjones, dwmw2, imammedo, itamar, jasowang, jen, jforbes, jjoyce, jschluet, kbasil, knoel, lhh, lpeer, markmc, m.a.young, mburns, mkenneth, mrezanin, mst, pbonzini, ppandit, rbryant, rjones, rkrcmar, robinlee.sysu, sclewis, slinaber, srevivo, tdecacqu, virt-maint, virt-maint, vkuznets, xen-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	A use-after-free issue was found in the Slirp networking implementation of the Quick emulator (QEMU). It occurs when a Socket referenced from multiple packets is freed while responding to a message. A user/process could use this flaw to crash the QEMU process on the host resulting in denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:22:28 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:	1486401, 1508739, 1508742, 1508743, 1508744, 1508745, 1508746, 1508747, 1508748, 1508749, 1508750, 1508751, 1508752, 1508753, 1509208, 1520690
Bug Blocks:	1462816, 1520691

Description Prasad Pandit 2017-08-29 16:07:25 UTC

Quick emulator(Qemu) built with the Slirp networking support is vulnerable
to an use-after-free issue. It occurs due to Socket referenced from multiple
packets is freed while responding to a message.

A user/process could use this flaw to crash the Qemu process on the host
resulting in DoS.

Upstream patch:
---------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg05201.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2017/08/29/6

Comment 1 Prasad Pandit 2017-08-29 16:08:05 UTC

Acknowledgments:

Name: Wjjzhang (Tencent.com)

Comment 2 Prasad Pandit 2017-08-29 16:09:12 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1486401]

Comment 3 Joshua Padman 2017-10-16 04:22:19 UTC

Changed openstack to affected / fix. We will be getting this from y-stream

Comment 4 Prasad Pandit 2017-11-02 06:37:43 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1508739]

Comment 17 errata-xmlrpc 2018-04-10 08:22:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0816 https://access.redhat.com/errata/RHSA-2018:0816

Comment 18 errata-xmlrpc 2018-04-10 18:55:14 UTC

This issue has been addressed in the following products:

  Red Hat Virtualization 4 for RHEL-7

Via RHSA-2018:1104 https://access.redhat.com/errata/RHSA-2018:1104

Comment 19 errata-xmlrpc 2018-04-11 18:02:18 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)
  Red Hat OpenStack Platform 11.0 (Ocata)
  Red Hat OpenStack Platform 8.0 (Liberty)
  Red Hat OpenStack Platform 9.0 (Mitaka)
  Red Hat OpenStack Platform 12.0 (Pike)

Via RHSA-2018:1113 https://access.redhat.com/errata/RHSA-2018:1113