Vulnerabilities
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CVE Vulnerabilities

CVE-2014-3672

Uncontrolled Resource Consumption

Published: May 25, 2016 | Modified: Apr 12, 2025
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
5.2 MODERATE
AV:A/AC:M/Au:S/C:N/I:N/A:C
RedHat/V3
Ubuntu
NEGLIGIBLE
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2014-3672
CWEhttps://cwe.mitre.org/data/definitions/400.html

The qemu implementation in libvirt before 1.3.0 and Xen allows local guest OS users to cause a denial of service (host disk consumption) by writing to stdout or stderr.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

NameVendorStart VersionEnd Version
LibvirtRedhat*1.2.21 (including)
LibvirtUbuntuesm-infra-legacy/trusty*
LibvirtUbuntuprecise*
LibvirtUbuntuprecise/esm*
LibvirtUbuntutrusty*
LibvirtUbuntutrusty/esm*
LibvirtUbuntuupstream*
LibvirtUbuntuwily*
QemuUbuntuartful*
QemuUbuntudevel*
QemuUbuntuesm-infra-legacy/trusty*
QemuUbuntuesm-infra/xenial*
QemuUbuntutrusty*
QemuUbuntutrusty/esm*
QemuUbuntuwily*
QemuUbuntuxenial*
QemuUbuntuyakkety*
QemuUbuntuzesty*
Qemu-kvmUbuntuprecise*
Qemu-kvmUbuntuprecise/esm*
XenUbuntuprecise*
XenUbuntutrusty*

Potential Mitigations

  • Mitigation of resource exhaustion attacks requires that the target system either:

  • The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

  • The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

References

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