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.
CVE-2014-0143
Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.0; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.0
- EG Score
- 7.0(medium)
- EG Risk
- 36(Track)EG Risk 36/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity70% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 34%
- KEV
- Not listed
Published
August 10, 2017
Last Modified
June 17, 2026
References (22)
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=509a41bab5306181044b5fff02eadf96d9c8676a
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6a83f8b5bec6f59e56cc49bd49e4c3f8f805d56f
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8f4754ede56e3f9ea3fd7207f4a7c4453e59285b
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=afbcc40bee4ef51731102d7d4b499ee12fc182e1
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=cab60de930684c33f67d4e32c7509b567f8c445b
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=db8a31d11d6a60f48d6817530640d75aa72a9a2f
- secalert@redhathttp://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e3737b820b45e54b059656dc3f914f895ac7a88b
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2014-0420.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2014-0421.html
- secalert@redhathttp://www.debian.org/security/2014/dsa-3044
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1079140
- af854a3a-2127-422b-91ae-364da2661108http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=509a41bab5306181044b5fff02eadf96d9c8676a
- af854a3a-2127-422b-91ae-364da2661108http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6a83f8b5bec6f59e56cc49bd49e4c3f8f805d56f
- af854a3a-2127-422b-91ae-364da2661108http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8f4754ede56e3f9ea3fd7207f4a7c4453e59285b
- af854a3a-2127-422b-91ae-364da2661108http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=afbcc40bee4ef51731102d7d4b499ee12fc182e1
Vendor Advisories for CVE-2014-0143(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2014:0674Red Hat Product SecurityMedium
Red Hat Security Advisory: rhev-hypervisor6 3.4.0 security, bug fix, and enhancement update
- RHSA-2014:0434Red Hat Product SecurityMedium
Red Hat Security Advisory: qemu-kvm-rhev security update
- RHSA-2014:0435Red Hat Product SecurityMedium
Red Hat Security Advisory: qemu-kvm-rhev security update
- RHSA-2014:0420Red Hat Product SecurityMedium
Red Hat Security Advisory: qemu-kvm security update
- RHSA-2014:0421Red Hat Product SecurityMedium
Red Hat Security Advisory: qemu-kvm-rhev security update
Patch Availability(4)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | qemu-kvm (1.0+noroms-0ubuntu14.17) @ precise | 2026-05-22 | ubuntu |
| redhat | rhev-hypervisor6-0:6.5-20140603.2.el6ev | 2014-06-09 | redhat |
| redhat | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.8 | 2014-04-24 | redhat |
| redhat | qemu-kvm-2:0.12.1.2-2.415.el6_5.8 | 2014-04-22 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(6 across 5 ecosystems)
Debian:7(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | 1.1.2+dfsg-6a, 1.1.2+dfsg-6a+deb7u1, 1.1.2+dfsg-6a+deb7u2, 1.1.2+dfsg-6a+deb7u3 | 1.1.2+dfsg-6a+deb7u4 | — |
| qemu-kvm | 1.1.2+dfsg-6, 1.1.2+dfsg-6+deb7u1, 1.1.2+dfsg-6+deb7u2, 1.1.2+dfsg-6+deb7u3 | 1.1.2+dfsg-6+deb7u4 | — |
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 2.0.0+dfsg-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 2.0.0+dfsg-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 2.0.0+dfsg-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| qemu | — | 2.0.0+dfsg-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 7× in last 7d / 21× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 124 total refreshes for this CVE.
- 2026-08-21 23:44 UTCEPSS rescore
- 2026-08-20 22:50 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:43 UTCEPSS rescore
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- 2026-08-16 02:09 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-13 23:10 UTCOSV refresh
- 2026-08-09 13:42 UTCEPSS rescore
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- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-29 02:47 UTCOSV refresh
- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 01:11 UTCEG score recompute
- 2026-07-23 00:15 UTCEG score recompute
- 2026-07-22 21:53 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
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- 2026-07-21 15:21 UTCEPSS rescore
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- 2026-07-11 19:11 UTCOSV refresh
- 2026-07-09 19:05 UTCEPSS rescore
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- 2026-07-07 13:41 UTCEPSS rescore
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- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
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- 2026-06-28 04:53 UTCEPSS rescore
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- 2026-06-25 13:47 UTCEPSS rescore
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- 2026-06-24 14:02 UTCEPSS rescore
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- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 01:30 UTCOSV refresh
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 14:53 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 22:15 UTCEPSS rescore
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- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 21:27 UTCOSV refresh
- 2026-06-05 06:08 UTCEPSS rescore
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- 2026-06-04 13:09 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
Frequently asked(5)
What is CVE-2014-0143?
When was CVE-2014-0143 disclosed?
Is CVE-2014-0143 actively exploited?
What is the CVSS score of CVE-2014-0143?
How do I remediate CVE-2014-0143?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2014-0143
Is Your Infrastructure Affected by CVE-2014-0143?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.