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CVE Vulnerabilities

CVE-2012-0810

Uncontrolled Resource Consumption

Published: Feb 12, 2020 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
4.9 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C
RedHat/V2
6.1 MODERATE
AV:L/AC:L/Au:N/C:P/I:P/A:C
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2012-0810
CWEhttps://cwe.mitre.org/data/definitions/400.html

The int3 handler in the Linux kernel before 3.3 relies on a per-CPU debug stack, which allows local users to cause a denial of service (stack corruption and panic) via a crafted application that triggers certain lock contention.

Weakness

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

Affected Software

NameVendorStart VersionEnd Version
Linux_kernelLinux*3.3 (excluding)
Red Hat Enterprise MRG 2RedHatkernel-rt-0:3.0.18-rt34.53.el6rt*
LinuxUbuntudevel*
LinuxUbuntuhardy*
LinuxUbuntulucid*
LinuxUbuntumaverick*
LinuxUbuntunatty*
LinuxUbuntuoneiric*
LinuxUbuntuupstream*
Linux-ec2Ubuntulucid*
Linux-ec2Ubuntumaverick*
Linux-ec2Ubuntuupstream*
Linux-fsl-imx51Ubuntulucid*
Linux-fsl-imx51Ubuntuupstream*
Linux-lts-backport-maverickUbuntulucid*
Linux-lts-backport-maverickUbuntuupstream*
Linux-lts-backport-nattyUbuntulucid*
Linux-lts-backport-nattyUbuntuupstream*
Linux-lts-backport-oneiricUbuntulucid*
Linux-lts-backport-oneiricUbuntuupstream*
Linux-mvl-doveUbuntulucid*
Linux-mvl-doveUbuntumaverick*
Linux-mvl-doveUbuntuupstream*
Linux-ti-omap4Ubuntudevel*
Linux-ti-omap4Ubuntumaverick*
Linux-ti-omap4Ubuntunatty*
Linux-ti-omap4Ubuntuoneiric*
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

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