Skip to content
Fencer Intel
high 7.0

CVE-2014-0143 json

Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via…

published 2017-08-10 9 y ago modified 2026-06-17 4 mo ago also EUVD-2014-0202

cvss
7.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in the get_refcount function in qcow2-refcount.c, or (7) a large number of blocks in the cloop_open function in cloop.c, which trigger buffer overflows, memory corruption, large memory allocations and out-of-bounds read and writes.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 2.0.0+dfsg-1

debian advisories DEBIAN-CVE-2014-0143

  • rhev-hypervisor6 RHEL 6 6.5-20140603.2.el6ev
  • qemu-kvm-rhev RHEL 6, openstack 4, openstack 3 2:0.12.1.2-2.415.el6_5.8
  • qemu-img-rhev RHEL 6, openstack 4, openstack 3 2:0.12.1.2-2.415.el6_5.8
  • qemu-kvm-rhev-tools RHEL 6, openstack 4, openstack 3 2:0.12.1.2-2.415.el6_5.8
  • qemu-kvm RHEL 6 2:0.12.1.2-2.415.el6_5.8
  • qemu-img RHEL 6 2:0.12.1.2-2.415.el6_5.8
  • qemu-kvm-tools RHEL 6 2:0.12.1.2-2.415.el6_5.8
  • qemu-guest-agent RHEL 6 2:0.12.1.2-2.415.el6_5.8

red hat advisories RHSA-2014:0674RHSA-2014:0435RHSA-2014:0434RHSA-2014:0421RHSA-2014:0420

  • qemu openSUSE Tumbleweed 2.6.1-1.5

opensuse advisories openSUSE-SU-2024:10233-1

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-2014-0143 updated cvss 4.3

Qemu: block: multiple integer overflow flaws

  • Red Hat Enterprise Linux 5 kvm
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) qemu-kvm-rhev
    affected: no fix available
  • Red Hat Enterprise Linux Desktop (v. 6) qemu-img 0.12.1.2-2.415.el6_5.8, qemu-kvm 0.12.1.2-2.415.el6_5.8, qemu-kvm-tools 0.12.1.2-2.415.el6_5.8, qemu-guest-agent 0.12.1.2-2.415.el6_5.8 Red Hat Enterprise Linux HPC Node (v. 6) qemu-img 0.12.1.2-2.415.el6_5.8, qemu-kvm 0.12.1.2-2.415.el6_5.8, qemu-kvm-tools 0.12.1.2-2.415.el6_5.8, qemu-guest-agent 0.12.1.2-2.415.el6_5.8
    fixed: vendor fix RHSA-2014:0420
  • Red Hat Enterprise Linux OpenStack Platform 3.0 qemu-img-rhev 0.12.1.2-2.415.el6_5.8, qemu-kvm-rhev 0.12.1.2-2.415.el6_5.8, qemu-kvm-rhev-tools 0.12.1.2-2.415.el6_5.8
    fixed: vendor fix RHSA-2014:0435
  • Red Hat Enterprise Linux OpenStack Platform 4.0 qemu-img-rhev 0.12.1.2-2.415.el6_5.8, qemu-kvm-rhev 0.12.1.2-2.415.el6_5.8, qemu-kvm-rhev-tools 0.12.1.2-2.415.el6_5.8
    fixed: vendor fix RHSA-2014:0434
  • Red Hat Enterprise Linux Server (v. 6) qemu-img 0.12.1.2-2.415.el6_5.8, qemu-kvm 0.12.1.2-2.415.el6_5.8, qemu-kvm-tools 0.12.1.2-2.415.el6_5.8, qemu-guest-agent 0.12.1.2-2.415.el6_5.8 Red Hat Enterprise Linux Workstation (v. 6) qemu-img 0.12.1.2-2.415.el6_5.8, qemu-kvm 0.12.1.2-2.415.el6_5.8, qemu-kvm-tools 0.12.1.2-2.415.el6_5.8, qemu-guest-agent 0.12.1.2-2.415.el6_5.8
    fixed: vendor fix RHSA-2014:0420
  • Red Hat RHEV Agents (vdsm) qemu-img-rhev 0.12.1.2-2.415.el6_5.8, qemu-kvm-rhev 0.12.1.2-2.415.el6_5.8, qemu-kvm-rhev-tools 0.12.1.2-2.415.el6_5.8
    fixed: vendor fix RHSA-2014:0421
  • Red Hat RHEV Hypervisor for RHEL-6 rhev-hypervisor6 6.5-20140603.2.el6ev
    fixed: vendor fix RHSA-2014:0674
show 1 more
  • Red Hat Enterprise Linux 7 qemu-img, qemu-kvm, libcacard, qemu-kvm-tools, libcacard-tools, qemu-kvm-common, +1 more
    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

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

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.