Description
The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration.
References (19)
Core 19
Core References
Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/01/12/10
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0083.html
Issue Tracking, Third Party Advisory, VDB Entry vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0085.html
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0086.html
Third Party Advisory x_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/01/12/11
Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/01/11/7
Third Party Advisory vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1034858
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0081.html
Third Party Advisory vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/80250
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201604-01
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3469
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3470
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0082.html
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0087.html
Vendor Advisory vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0084.html
Third Party Advisory vendor-advisory
x_refsource_debian
http://www.debian.org/security/2016/dsa-3471
Issue Tracking, Third Party Advisory, VDB Entry vendor-advisory
x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-0088.html
Vendor Advisory mailing-list
x_refsource_mlist
https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00428.html
Scores
CVSS v3
8.1
EPSS
0.0034
EPSS Percentile
57.0%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-119
Status
published
Products (4)
oracle/linux
6
oracle/linux
7
qemu/qemu
< 2.3.0
redhat/openstack
5.0
Published
Apr 07, 2016
Tracked Since
Feb 18, 2026