Bug 1296060 - (CVE-2016-1714) CVE-2016-1714 Qemu: nvram: OOB r/w access in processing firmware configurations
CVE-2016-1714 Qemu: nvram: OOB r/w access in processing firmware configurations
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20160105,repo...
: Security
Depends On: 1296080 1298045 1298046 1298047 1298048 1298049 1298050 1298051 1298052 1298385 1298433 1298434 1298435 1298436
Blocks: 1295739 1298460
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Reported: 2016-01-06 05:03 EST by Prasad J Pandit
Modified: 2016-06-14 14:29 EDT (History)
41 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
An out-of-bounds read/write flaw was discovered in the way QEMU's Firmware Configuration device emulation processed certain firmware configurations. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
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Clone Of:
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Last Closed: 2016-01-28 15:34:24 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Prasad J Pandit 2016-01-06 05:03:36 EST
Qemu emulator built with the Firmware Configuration device emulation support is
vulnerable to an OOB r/w access issue. It could occur while processing firmware
configurations, if the current configuration entry value was set to be
invalid(FW_CFG_INVALID=0xffff).

A privileged(CAP_SYS_RAWIO) user/process inside guest could use this flaw to
crash the Qemu process instance resulting in DoS OR potentially execute
arbitrary code with privileges of the Qemu process on the host.

Upstream fix:
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  -> https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00428.html

Reference:
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  -> http://www.openwall.com/lists/oss-security/2016/01/12/10
Comment 1 Prasad J Pandit 2016-01-06 05:07:58 EST
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1296080]
Comment 2 Prasad J Pandit 2016-01-06 05:18:46 EST
Statement: 

(none)
Comment 3 Prasad J Pandit 2016-01-07 01:44:13 EST
Acknowledgement:

Red Hat would like to thank Donghai Zhu of Alibaba for reporting this issue.
Comment 9 errata-xmlrpc 2016-01-28 10:41:04 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:0082 https://rhn.redhat.com/errata/RHSA-2016-0082.html
Comment 10 errata-xmlrpc 2016-01-28 10:42:15 EST
This issue has been addressed in the following products:

  RHEV-H and Agents for RHEL-6

Via RHSA-2016:0081 https://rhn.redhat.com/errata/RHSA-2016-0081.html
Comment 11 errata-xmlrpc 2016-01-28 10:56:41 EST
This issue has been addressed in the following products:

  OpenStack 7 For RHEL 7

Via RHSA-2016:0088 https://rhn.redhat.com/errata/RHSA-2016-0088.html
Comment 12 errata-xmlrpc 2016-01-28 10:57:59 EST
This issue has been addressed in the following products:

  OpenStack 6 for RHEL 7

Via RHSA-2016:0087 https://rhn.redhat.com/errata/RHSA-2016-0087.html
Comment 13 errata-xmlrpc 2016-01-28 10:59:24 EST
This issue has been addressed in the following products:

  OpenStack 5 for RHEL 7

Via RHSA-2016:0086 https://rhn.redhat.com/errata/RHSA-2016-0086.html
Comment 14 errata-xmlrpc 2016-01-28 11:00:30 EST
This issue has been addressed in the following products:

  OpenStack 5 for RHEL 6

Via RHSA-2016:0085 https://rhn.redhat.com/errata/RHSA-2016-0085.html
Comment 15 errata-xmlrpc 2016-01-28 11:02:24 EST
This issue has been addressed in the following products:

  RHEV 3.6 For IBM Power Systems
  RHEV-H and Agents for RHEL-7

Via RHSA-2016:0084 https://rhn.redhat.com/errata/RHSA-2016-0084.html
Comment 16 errata-xmlrpc 2016-01-28 11:14:38 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:0083 https://rhn.redhat.com/errata/RHSA-2016-0083.html
Comment 17 Fedora Update System 2016-03-19 17:22:02 EDT
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 18 Fedora Update System 2016-03-19 22:25:52 EDT
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.

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