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Vulnerability record · CVE-2014-0148 · published 29 September 2022

CVE-2014-0148: Qemu vulnerability

Qemu · Qemu

Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.

5.5 CVSS 3.1 Medium EPSS 0.30% · top 79.2% CWE-835 · CWE-835
5.5CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS.

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

Affected products

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

References

LinkTags
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a703ba1a6
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=1078212 Issue TrackingPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.html Mailing ListPatchThird Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a703ba1a6
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=1078212 Issue TrackingPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2014-03/msg04994.html Mailing ListPatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2014-0148), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.