Bug 1339583 (CVE-2016-5105)

Summary:	CVE-2016-5105 Qemu: scsi: megasas: stack information leakage while reading configuration
Product:	[Other] Security Response	Reporter:	Prasad Pandit <ppandit>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abaron, ailan, amit.shah, apevec, areis, ayoung, berrange, cfergeau, chrisw, drjones, dwmw2, imammedo, itamar, jen, jschluet, knoel, lhh, lpeer, markmc, m.a.young, mkenneth, mrezanin, mst, pbonzini, rbryant, rjones, rkrcmar, sclewis, 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:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:52:44 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:	1339585
Bug Blocks:	1337885

Description Prasad Pandit 2016-05-25 11:42:20 UTC

Quick Emulator(Qemu) built with the MegaRAID SAS 8708EM2 Host Bus Adapter
emulation support is vulnerable to an information leakage issue. It
could occur while processing MegaRAID Firmware Interface(MFI) command to read
device configuration in 'megasas_dcmd_cfg_read'.

A privileged user inside guest could use this flaw to leak host memory bytes.

Upstream patch
--------------
  -> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg04419.html

Reference:
----------
  -> http://www.openwall.com/lists/oss-security/2016/05/25/5

Comment 1 Prasad Pandit 2016-05-25 11:42:54 UTC

Acknowledgments:

Name: Li Qiang (Qihoo 360 Inc.)

Comment 2 Prasad Pandit 2016-05-25 11:44:04 UTC

Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 1339585]

Comment 3 Fedora Update System 2016-05-30 21:19:42 UTC

xen-4.6.1-10.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-06-05 02:56:23 UTC

xen-4.5.3-6.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-06-12 22:51:43 UTC

xen-4.5.3-6.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 2016-06-25 19:24:45 UTC

qemu-2.6.0-4.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 7 Fedora Update System 2016-07-02 19:24:14 UTC

qemu-2.3.1-16.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 8 Fedora Update System 2016-07-02 19:29:31 UTC

qemu-2.4.1-11.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.