CVE Vulnerabilities

CVE-2014-3122

Uncontrolled Resource Consumption

Published: May 11, 2014 | Modified: Apr 12, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.9 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
4.9 MODERATE
AV:L/AC:L/Au:N/C:N/I:N/A:C
RedHat/V3
Ubuntu
MEDIUM
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The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system crash) by triggering a memory-usage pattern that requires removal of page-table mappings.

Weakness

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

Affected Software

NameVendorStart VersionEnd Version
Linux_kernelLinux*3.14.3 (excluding)
Red Hat Enterprise Linux 6RedHatkernel-0:2.6.32-504.el6*
Red Hat Enterprise MRG 2RedHatkernel-rt-0:3.10.33-rt32.34.el6rt*
LinuxUbuntuesm-infra-legacy/trusty*
LinuxUbuntulucid*
LinuxUbuntuprecise*
LinuxUbuntuprecise/esm*
LinuxUbuntuquantal*
LinuxUbuntusaucy*
LinuxUbuntutrusty*
LinuxUbuntutrusty/esm*
LinuxUbuntuupstream*
Linux-armadaxpUbuntuprecise*
Linux-armadaxpUbuntuquantal*
Linux-armadaxpUbuntuupstream*
Linux-awsUbuntuupstream*
Linux-ec2Ubuntulucid*
Linux-ec2Ubuntuupstream*
Linux-floUbuntutrusty*
Linux-floUbuntutrusty/esm*
Linux-floUbuntuupstream*
Linux-floUbuntuutopic*
Linux-floUbuntuvivid*
Linux-floUbuntuvivid/stable-phone-overlay*
Linux-floUbuntuwily*
Linux-floUbuntuxenial*
Linux-floUbuntuyakkety*
Linux-fsl-imx51Ubuntulucid*
Linux-fsl-imx51Ubuntuupstream*
Linux-gkeUbuntuupstream*
Linux-goldfishUbuntusaucy*
Linux-goldfishUbuntutrusty*
Linux-goldfishUbuntutrusty/esm*
Linux-goldfishUbuntuupstream*
Linux-goldfishUbuntuutopic*
Linux-goldfishUbuntuvivid*
Linux-goldfishUbuntuwily*
Linux-goldfishUbuntuxenial*
Linux-goldfishUbuntuyakkety*
Linux-goldfishUbuntuzesty*
Linux-grouperUbuntusaucy*
Linux-grouperUbuntutrusty*
Linux-grouperUbuntuupstream*
Linux-grouperUbuntuutopic*
Linux-hweUbuntuupstream*
Linux-hwe-edgeUbuntuupstream*
Linux-linaro-omapUbuntuprecise*
Linux-linaro-omapUbuntuquantal*
Linux-linaro-omapUbuntuupstream*
Linux-linaro-sharedUbuntuprecise*
Linux-linaro-sharedUbuntuquantal*
Linux-linaro-sharedUbuntuupstream*
Linux-linaro-vexpressUbuntuprecise*
Linux-linaro-vexpressUbuntuquantal*
Linux-linaro-vexpressUbuntuupstream*
Linux-lts-quantalUbuntuprecise*
Linux-lts-quantalUbuntuupstream*
Linux-lts-raringUbuntuprecise*
Linux-lts-raringUbuntuupstream*
Linux-lts-saucyUbuntuprecise*
Linux-lts-saucyUbuntuupstream*
Linux-lts-trustyUbuntuprecise*
Linux-lts-trustyUbuntuprecise/esm*
Linux-lts-trustyUbuntuupstream*
Linux-lts-utopicUbuntuupstream*
Linux-lts-vividUbuntuupstream*
Linux-lts-wilyUbuntuupstream*
Linux-lts-xenialUbuntuupstream*
Linux-maguroUbuntusaucy*
Linux-maguroUbuntutrusty*
Linux-maguroUbuntuupstream*
Linux-makoUbuntusaucy*
Linux-makoUbuntutrusty*
Linux-makoUbuntutrusty/esm*
Linux-makoUbuntuupstream*
Linux-makoUbuntuutopic*
Linux-makoUbuntuvivid*
Linux-makoUbuntuvivid/stable-phone-overlay*
Linux-makoUbuntuwily*
Linux-makoUbuntuxenial*
Linux-makoUbuntuyakkety*
Linux-mantaUbuntusaucy*
Linux-mantaUbuntutrusty*
Linux-mantaUbuntutrusty/esm*
Linux-mantaUbuntuupstream*
Linux-mantaUbuntuutopic*
Linux-mantaUbuntuvivid*
Linux-mantaUbuntuwily*
Linux-mvl-doveUbuntulucid*
Linux-mvl-doveUbuntuupstream*
Linux-qcm-msmUbuntulucid*
Linux-qcm-msmUbuntuprecise*
Linux-qcm-msmUbuntuquantal*
Linux-qcm-msmUbuntuupstream*
Linux-raspi2Ubuntuupstream*
Linux-raspi2Ubuntuvivid/ubuntu-core*
Linux-snapdragonUbuntuupstream*
Linux-ti-omap4Ubuntuprecise*
Linux-ti-omap4Ubuntuquantal*
Linux-ti-omap4Ubuntusaucy*
Linux-ti-omap4Ubuntuupstream*

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