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Vulnerability record · CVE-2014-0147 · published 29 September 2022

CVE-2014-0147: Qemu integer overflow vulnerability

Qemu · Qemu

Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.

6.2 CVSS 3.1 Medium EPSS 0.33% · top 76.5% CWE-190 · Integer overflow
6.2CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine.

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=246f65838d19db6db55bfb41117c35645a2c4789
http://rhn.redhat.com/errata/RHSA-2014-0420.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0421.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/03/26/8 Mailing ListPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1078848 Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1086717 Issue TrackingThird Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=246f65838d19db6db55bfb41117c35645a2c4789
http://rhn.redhat.com/errata/RHSA-2014-0420.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0421.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/03/26/8 Mailing ListPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1078848 Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1086717 Issue TrackingThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2014-0147), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.