CVE-2016-1714
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 6.08% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- redhat/openstack · oracle/linux · qemu/qemu
- Source
- secalert@redhat.com
References
- http://rhn.redhat.com/errata/RHSA-2016-0081.html
- http://rhn.redhat.com/errata/RHSA-2016-0082.html
- http://rhn.redhat.com/errata/RHSA-2016-0083.html
- http://rhn.redhat.com/errata/RHSA-2016-0084.html
- http://rhn.redhat.com/errata/RHSA-2016-0085.htmlIssue Tracking, Third Party Advisory, VDB Entry
- http://rhn.redhat.com/errata/RHSA-2016-0086.html
- http://rhn.redhat.com/errata/RHSA-2016-0087.html
- http://rhn.redhat.com/errata/RHSA-2016-0088.htmlIssue Tracking, Third Party Advisory, VDB Entry
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3471
- http://www.openwall.com/lists/oss-security/2016/01/11/7Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/12/10Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/12/11Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.securityfocus.com/bid/80250Third Party Advisory
- http://www.securitytracker.com/id/1034858Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00428.htmlVendor Advisory
- https://security.gentoo.org/glsa/201604-01
- http://rhn.redhat.com/errata/RHSA-2016-0081.html
- http://rhn.redhat.com/errata/RHSA-2016-0082.html
- http://rhn.redhat.com/errata/RHSA-2016-0083.html
- http://rhn.redhat.com/errata/RHSA-2016-0084.html
- http://rhn.redhat.com/errata/RHSA-2016-0085.htmlIssue Tracking, Third Party Advisory, VDB Entry
- http://rhn.redhat.com/errata/RHSA-2016-0086.html
- http://rhn.redhat.com/errata/RHSA-2016-0087.html
- http://rhn.redhat.com/errata/RHSA-2016-0088.htmlIssue Tracking, Third Party Advisory, VDB Entry
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3470
- http://www.debian.org/security/2016/dsa-3471
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.