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Fencer Intel
medium 4.6

CVE-2014-0223 json

Integer overflow in the qcow_open function in block/qcow.c in QEMU before 1.7.2 allows local users to cause a denial of service (crash) and…

published 2014-11-04 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-0266

cvss
4.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

Integer overflow in the qcow_open function in block/qcow.c in QEMU before 1.7.2 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a large image size, which triggers a buffer overflow or out-of-bounds read.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 2.0.0+dfsg-6

debian advisories DEBIAN-CVE-2014-0223

  • qemu Ubuntu 14.04 LTS 2.0.0+dfsg-2ubuntu1.3

ubuntu advisories UBUNTU-CVE-2014-0223

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 openstack 5 10:1.5.3-60.el7_0.7
  • qemu-img-rhev openstack 5 10:1.5.3-60.el7_0.7
  • libcacard-rhev openstack 5 10:1.5.3-60.el7_0.7
  • qemu-kvm-tools-rhev openstack 5 10:1.5.3-60.el7_0.7
  • libcacard-devel-rhev openstack 5 10:1.5.3-60.el7_0.7
  • libcacard-tools-rhev openstack 5 10:1.5.3-60.el7_0.7
  • qemu-kvm-common-rhev openstack 5 10:1.5.3-60.el7_0.7
  • qemu-kvm RHEL 7 10:1.5.3-60.el7_0.5

red hat advisories RHSA-2014:1268RHSA-2014:0927RHSA-2014:1168RHSA-2014:1187RHSA-2014:1076RHSA-2014:1075

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-2014-0223 updated cvss 4.3

Qemu: qcow1: validate image size to avoid out-of-bounds memory access

  • Red Hat Enterprise Linux 5 kvm
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) qemu-img 1.5.3-60.el7_0.5, qemu-kvm 1.5.3-60.el7_0.5, libcacard 1.5.3-60.el7_0.5, qemu-kvm-tools 1.5.3-60.el7_0.5, qemu-kvm-common 1.5.3-60.el7_0.5, qemu-guest-agent 1.5.3-60.el7_0.5 Red Hat Enterprise Linux Client Optional (v. 7) libcacard-tools 1.5.3-60.el7_0.5 Red Hat Enterprise Linux ComputeNode (v. 7) qemu-kvm 1.5.3-60.el7_0.5, qemu-guest-agent 1.5.3-60.el7_0.5 Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img 1.5.3-60.el7_0.5, qemu-kvm 1.5.3-60.el7_0.5, libcacard 1.5.3-60.el7_0.5, qemu-kvm-tools 1.5.3-60.el7_0.5, libcacard-tools 1.5.3-60.el7_0.5, qemu-kvm-common 1.5.3-60.el7_0.5
    fixed: vendor fix RHSA-2014:0927
  • Red Hat Enterprise Linux Desktop (v. 6) qemu-img 0.12.1.2-2.415.el6_5.14, qemu-kvm 0.12.1.2-2.415.el6_5.14, qemu-kvm-tools 0.12.1.2-2.415.el6_5.14, qemu-guest-agent 0.12.1.2-2.415.el6_5.14 Red Hat Enterprise Linux HPC Node (v. 6) qemu-img 0.12.1.2-2.415.el6_5.14, qemu-kvm 0.12.1.2-2.415.el6_5.14, qemu-kvm-tools 0.12.1.2-2.415.el6_5.14, qemu-guest-agent 0.12.1.2-2.415.el6_5.14
    fixed: vendor fix RHSA-2014:1075
  • Red Hat Enterprise Linux OpenStack Platform 4.0 qemu-img-rhev 0.12.1.2-2.415.el6_5.14, qemu-kvm-rhev 0.12.1.2-2.415.el6_5.14, qemu-kvm-rhev-tools 0.12.1.2-2.415.el6_5.14 Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 qemu-img-rhev 0.12.1.2-2.415.el6_5.14, qemu-kvm-rhev 0.12.1.2-2.415.el6_5.14, qemu-kvm-rhev-tools 0.12.1.2-2.415.el6_5.14
    fixed: vendor fix RHSA-2014:1187
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 qemu-img-rhev 1.5.3-60.el7_0.7, qemu-kvm-rhev 1.5.3-60.el7_0.7, libcacard-rhev 1.5.3-60.el7_0.7, qemu-kvm-tools-rhev 1.5.3-60.el7_0.7, libcacard-devel-rhev 1.5.3-60.el7_0.7, libcacard-tools-rhev 1.5.3-60.el7_0.7, +1 more
    fixed: vendor fix RHSA-2014:1268
  • Red Hat Enterprise Linux Server (v. 6) qemu-img 0.12.1.2-2.415.el6_5.14, qemu-kvm 0.12.1.2-2.415.el6_5.14, qemu-kvm-tools 0.12.1.2-2.415.el6_5.14, qemu-guest-agent 0.12.1.2-2.415.el6_5.14
    fixed: vendor fix RHSA-2014:1075
  • Red Hat Enterprise Linux Server (v. 7) qemu-img 1.5.3-60.el7_0.5, qemu-kvm 1.5.3-60.el7_0.5, libcacard 1.5.3-60.el7_0.5, qemu-kvm-tools 1.5.3-60.el7_0.5, qemu-kvm-common 1.5.3-60.el7_0.5, qemu-guest-agent 1.5.3-60.el7_0.5 Red Hat Enterprise Linux Server Optional (v. 7) libcacard-tools 1.5.3-60.el7_0.5
    fixed: vendor fix RHSA-2014:0927
  • Red Hat Enterprise Linux Workstation (v. 6) qemu-img 0.12.1.2-2.415.el6_5.14, qemu-kvm 0.12.1.2-2.415.el6_5.14, qemu-kvm-tools 0.12.1.2-2.415.el6_5.14, qemu-guest-agent 0.12.1.2-2.415.el6_5.14
    fixed: vendor fix RHSA-2014:1075
show 3 more
  • Red Hat Enterprise Linux Workstation (v. 7) qemu-img 1.5.3-60.el7_0.5, qemu-kvm 1.5.3-60.el7_0.5, libcacard 1.5.3-60.el7_0.5, qemu-kvm-tools 1.5.3-60.el7_0.5, qemu-kvm-common 1.5.3-60.el7_0.5, qemu-guest-agent 1.5.3-60.el7_0.5 Red Hat Enterprise Linux Workstation Optional (v. 7) libcacard-tools 1.5.3-60.el7_0.5
    fixed: vendor fix RHSA-2014:0927
  • Red Hat RHEV Agents (vdsm) qemu-img-rhev 0.12.1.2-2.415.el6_5.14, qemu-kvm-rhev 0.12.1.2-2.415.el6_5.14, qemu-kvm-rhev-tools 0.12.1.2-2.415.el6_5.14
    fixed: vendor fix RHSA-2014:1076
  • Red Hat RHEV Hypervisor for RHEL-6 rhev-hypervisor6 6.5-20140821.1.el6ev
    fixed: vendor fix RHSA-2014:1168

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

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • lists.gnu.org https://lists.gnu.org/archive/html/qemu-devel/2014-05/msg02156.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel 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.