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.
Metrics
CVSS 3.0 8.1/10
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
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
- 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
Timeline
- Published
- Apr 7, 2016
- Last modified
- Jun 17, 2026
- NVD status
- Modified