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Fencer Vulns
high 8.1

CVE-2016-1714 json

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 devi…

published 2016-04-07 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2809

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.1%
EPSS 6.1% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

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.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 1:2.5+dfsg-4

debian advisories DEBIAN-CVE-2016-1714

  • qemu Ubuntu 14.04 LTS 2.0.0+dfsg-2ubuntu1.22

ubuntu advisories UBUNTU-CVE-2016-1714

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • qemu-kvm-rhev RHEL 7, openstack 7, openstack 6 +1 more 10:2.3.0-31.el7_2.7
  • qemu-img-rhev RHEL 7, openstack 7, openstack 6 +1 more 10:2.3.0-31.el7_2.7
  • libcacard-rhev RHEL 7, openstack 7, openstack 6 +1 more 10:2.3.0-31.el7_2.7
  • qemu-kvm-tools-rhev RHEL 7, openstack 7, openstack 6 +1 more 10:2.3.0-31.el7_2.7
  • libcacard-tools-rhev RHEL 7, openstack 7, openstack 6 +1 more 10:2.3.0-31.el7_2.7
  • qemu-kvm-common-rhev RHEL 7, openstack 7, openstack 6 +1 more 10:2.3.0-31.el7_2.7
  • libcacard-devel-rhev RHEL 7, openstack 6, openstack 5 10:2.3.0-31.el7_2.7
  • qemu-kvm-rhev RHEL 6, openstack 5 2:0.12.1.2-2.479.el6_7.4

red hat advisories RHSA-2016:0088RHSA-2016:0087RHSA-2016:0084RHSA-2016:0086RHSA-2016:0085RHSA-2016:0083

  • kvm SLES for SAP 11 SP4, SLES 11 SP4 1.4.2-44.1
  • qemu SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 2.3.1-14.1
  • kvm SLES 11 SP3-TERADATA, SLES 11 SP3-LTSS 1.4.2-46.1
  • qemu SLES for SAP 12, SLES 12, SLED 12 2.0.2-48.19.1
  • xen SLES for SAP 12, SLES 12, SLED 12 +1 more 4.4.4_02-22.19.1
  • xen SLES for SAP 11 SP4, SLES 11 SP4, SLED 11 SP4 +1 more 4.4.4_02-32.1
  • xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 4.5.2_06-7.1
  • xen SLES 11 SP3-LTSS 4.2.5_20-24.9

suse advisories SUSE-SU-2016:1785-1SUSE-SU-2016:1745-1SUSE-SU-2016:1703-1SUSE-SU-2016:1698-1SUSE-SU-2016:1560-1SUSE-SU-2016:1318-1

  • xen openSUSE Tumbleweed 4.7.0_12-1.3
  • qemu openSUSE Tumbleweed 6.1.0-32.1

opensuse advisories openSUSE-SU-2024:10196-1openSUSE-SU-2024:11287-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-1714 updated cvss 4.9

Qemu: nvram: OOB r/w access in processing firmware configurations

  • Red Hat Enterprise Linux 5 kvm
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 6 qemu-kvm-rhev Red Hat OpenStack Platform 8 (Liberty) qemu-img-rhev, qemu-kvm-rhev, libcacard-rhev, qemu-kvm-tools-rhev, libcacard-devel-rhev, libcacard-tools-rhev, +1 more
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) qemu-img 1.5.3-105.el7_2.3, qemu-kvm 1.5.3-105.el7_2.3, libcacard 1.5.3-105.el7_2.3, qemu-kvm-tools 1.5.3-105.el7_2.3, qemu-kvm-common 1.5.3-105.el7_2.3 Red Hat Enterprise Linux Client Optional (v. 7) libcacard-tools 1.5.3-105.el7_2.3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img 1.5.3-105.el7_2.3, qemu-kvm 1.5.3-105.el7_2.3, libcacard 1.5.3-105.el7_2.3, qemu-kvm-tools 1.5.3-105.el7_2.3, libcacard-tools 1.5.3-105.el7_2.3, qemu-kvm-common 1.5.3-105.el7_2.3
    fixed: vendor fix RHSA-2016:0083
  • Red Hat Enterprise Linux Desktop (v. 6) qemu-img 0.12.1.2-2.479.el6_7.4, qemu-kvm 0.12.1.2-2.479.el6_7.4, qemu-kvm-tools 0.12.1.2-2.479.el6_7.4, qemu-guest-agent 0.12.1.2-2.479.el6_7.4 Red Hat Enterprise Linux HPC Node (v. 6) qemu-img 0.12.1.2-2.479.el6_7.4, qemu-kvm 0.12.1.2-2.479.el6_7.4, qemu-kvm-tools 0.12.1.2-2.479.el6_7.4, qemu-guest-agent 0.12.1.2-2.479.el6_7.4
    fixed: vendor fix RHSA-2016:0082
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 qemu-img-rhev 0.12.1.2-2.479.el6_7.4, qemu-kvm-rhev 0.12.1.2-2.479.el6_7.4, qemu-kvm-rhev-tools 0.12.1.2-2.479.el6_7.4
    fixed: vendor fix RHSA-2016:0085
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 qemu-img-rhev 2.3.0-31.el7_2.7, qemu-kvm-rhev 2.3.0-31.el7_2.7, libcacard-rhev 2.3.0-31.el7_2.7, qemu-kvm-tools-rhev 2.3.0-31.el7_2.7, libcacard-devel-rhev 2.3.0-31.el7_2.7, libcacard-tools-rhev 2.3.0-31.el7_2.7, +1 more
    fixed: vendor fix RHSA-2016:0086
  • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-img-rhev 2.3.0-31.el7_2.7, qemu-kvm-rhev 2.3.0-31.el7_2.7, libcacard-rhev 2.3.0-31.el7_2.7, qemu-kvm-tools-rhev 2.3.0-31.el7_2.7, libcacard-devel-rhev 2.3.0-31.el7_2.7, libcacard-tools-rhev 2.3.0-31.el7_2.7, +1 more
    fixed: vendor fix RHSA-2016:0087
  • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-img-rhev 2.3.0-31.el7_2.7, qemu-kvm-rhev 2.3.0-31.el7_2.7, libcacard-rhev 2.3.0-31.el7_2.7, qemu-kvm-tools-rhev 2.3.0-31.el7_2.7, libcacard-tools-rhev 2.3.0-31.el7_2.7, qemu-kvm-common-rhev 2.3.0-31.el7_2.7
    fixed: vendor fix RHSA-2016:0088
show 7 more
  • Red Hat Enterprise Linux Server (v. 6) qemu-img 0.12.1.2-2.479.el6_7.4, qemu-kvm 0.12.1.2-2.479.el6_7.4, qemu-kvm-tools 0.12.1.2-2.479.el6_7.4, qemu-guest-agent 0.12.1.2-2.479.el6_7.4
    fixed: vendor fix RHSA-2016:0082
  • Red Hat Enterprise Linux Server (v. 7) qemu-img 1.5.3-105.el7_2.3, qemu-kvm 1.5.3-105.el7_2.3, libcacard 1.5.3-105.el7_2.3, qemu-kvm-tools 1.5.3-105.el7_2.3, qemu-kvm-common 1.5.3-105.el7_2.3 Red Hat Enterprise Linux Server Optional (v. 7) libcacard 1.5.3-105.el7_2.3, libcacard-tools 1.5.3-105.el7_2.3
    fixed: vendor fix RHSA-2016:0083
  • Red Hat Enterprise Linux Workstation (v. 6) qemu-img 0.12.1.2-2.479.el6_7.4, qemu-kvm 0.12.1.2-2.479.el6_7.4, qemu-kvm-tools 0.12.1.2-2.479.el6_7.4, qemu-guest-agent 0.12.1.2-2.479.el6_7.4
    fixed: vendor fix RHSA-2016:0082
  • Red Hat Enterprise Linux Workstation (v. 7) qemu-img 1.5.3-105.el7_2.3, qemu-kvm 1.5.3-105.el7_2.3, libcacard 1.5.3-105.el7_2.3, qemu-kvm-tools 1.5.3-105.el7_2.3, qemu-kvm-common 1.5.3-105.el7_2.3 Red Hat Enterprise Linux Workstation Optional (v. 7) libcacard-tools 1.5.3-105.el7_2.3
    fixed: vendor fix RHSA-2016:0083
  • Red Hat RHEV Agents (vdsm) qemu-img-rhev 0.12.1.2-2.479.el6_7.4, qemu-kvm-rhev 0.12.1.2-2.479.el6_7.4, qemu-kvm-rhev-tools 0.12.1.2-2.479.el6_7.4
    fixed: vendor fix RHSA-2016:0081
  • Red Hat RHEV Power Host qemu-img-rhev 2.3.0-31.el7_2.7, qemu-kvm-rhev 2.3.0-31.el7_2.7, libcacard-rhev 2.3.0-31.el7_2.7, qemu-kvm-tools-rhev 2.3.0-31.el7_2.7, libcacard-devel-rhev 2.3.0-31.el7_2.7, libcacard-tools-rhev 2.3.0-31.el7_2.7, +1 more Red Hat RHEV-H and VDSM for 7 Hosts qemu-img-rhev 2.3.0-31.el7_2.7, qemu-kvm-rhev 2.3.0-31.el7_2.7, libcacard-rhev 2.3.0-31.el7_2.7, qemu-kvm-tools-rhev 2.3.0-31.el7_2.7, libcacard-devel-rhev 2.3.0-31.el7_2.7, libcacard-tools-rhev 2.3.0-31.el7_2.7, +1 more
    fixed: vendor fix RHSA-2016:0084
  • Red Hat Enterprise Linux 5 xen
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

6.08% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.