Bug 1300771 (CVE-2015-8817, CVE-2015-8818)

Summary:	CVE-2015-8817 CVE-2015-8818 Qemu: OOB access in address_space_rw leads to segmentation fault
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abaron, alonbl, aortega, apevec, areis, ayoung, bmcclain, carnil, chrisw, cvsbot-xmlrpc, dallan, dblechte, gklein, gkotton, jen, jschluet, kbasil, knoel, lhh, lpeer, markmc, mgoldboi, michal.skrivanek, mkenneth, mrezanin, mst, pbonzini, ppandit, rbalakri, rbryant, sclewis, security-response-team, sherold, slong, srevivo, tdecacqu, virt-maint, ykaul, ylavi
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance (denial of service).	Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-23 11:04:07 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:	1313273, 1335741, 1335742, 1335743, 1335744, 1335745, 1386697
Bug Blocks:	1300775

Description Adam Mariš 2016-01-21 16:51:13 UTC

Qemu emulator built to use 'address_space_translate' to map an address to a MemoryRegionSection is vulnerable to an OOB r/w access issue. It could occur while doing pci_dma_read/write calls. Affects Qemu versions >= 1.6.0 & <= 2.3.1.

A privileged user inside guest could use this flaw to crash the guest instance resulting in DoS.

Upstream patches:
-----------------
  ->  http://git.qemu.org/?p=qemu.git;a=commit;h=c3c1bb99d1c11978d9ce94d1bd 
  ->  http://git.qemu.org/?p=qemu.git;a=commit;h=e4a511f8cc6f4a46d409fb5c9f 
  ->  http://git.qemu.org/?p=qemu.git;a=commit;h=965eb2fcdfe919ecced6c34803 
  ->  http://git.qemu.org/?p=qemu.git;a=commit;h=b242e0e0e2969c044a318e56f7 
 [*] https://lists.gnu.org/archive/html/qemu-stable/2016-01/msg00060.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2016/03/01/1

Comment 2 Prasad Pandit 2016-03-01 08:11:35 UTC

Statement:

(none)

Comment 3 Prasad Pandit 2016-03-01 09:43:08 UTC

Acknowledgements:

Red Hat would like to thank Donghai Zdh of Alibaba Inc. for reporting this issue.

Comment 4 Prasad Pandit 2016-03-01 09:55:13 UTC

Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1313273]

Comment 5 Fedora Update System 2016-03-19 21:24:11 UTC

xen-4.5.2-9.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2016-03-20 02:28:08 UTC

xen-4.5.2-9.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 10 errata-xmlrpc 2016-11-07 18:15:28 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 9.0 (Mitaka)

Via RHSA-2016:2671 https://rhn.redhat.com/errata/RHSA-2016-2671.html

Comment 11 errata-xmlrpc 2016-11-07 18:16:36 UTC

This issue has been addressed in the following products:

  Red Hat OpenStack Platform 8.0 (Liberty)

Via RHSA-2016:2670 https://rhn.redhat.com/errata/RHSA-2016-2670.html

Comment 12 errata-xmlrpc 2016-11-14 19:45:28 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7

Via RHSA-2016:2704 https://rhn.redhat.com/errata/RHSA-2016-2704.html

Comment 13 errata-xmlrpc 2016-11-14 19:59:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7

Via RHSA-2016:2706 https://rhn.redhat.com/errata/RHSA-2016-2706.html

Comment 14 errata-xmlrpc 2016-11-14 20:05:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7

Via RHSA-2016:2705 https://rhn.redhat.com/errata/RHSA-2016-2705.html