Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2010-4668

Uncontrolled Resource Consumption

Published: Jan 03, 2011 | Modified: Apr 11, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.7 MEDIUM
AV:L/AC:M/Au:N/C:N/I:N/A:C
RedHat/V2
4.7 MODERATE
AV:L/AC:M/Au:N/C:N/I:N/A:C
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2010-4668
CWEhttps://cwe.mitre.org/data/definitions/400.html

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 2.6.37-rc7 allows local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.

Weakness

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

Affected Software

NameVendorStart VersionEnd Version
Linux_kernelLinux*2.6.37 (excluding)
Linux_kernelLinux2.6.37 (including)2.6.37 (including)
Linux_kernelLinux2.6.37-rc1 (including)2.6.37-rc1 (including)
Linux_kernelLinux2.6.37-rc2 (including)2.6.37-rc2 (including)
Linux_kernelLinux2.6.37-rc3 (including)2.6.37-rc3 (including)
Linux_kernelLinux2.6.37-rc4 (including)2.6.37-rc4 (including)
Linux_kernelLinux2.6.37-rc5 (including)2.6.37-rc5 (including)
Linux_kernelLinux2.6.37-rc6 (including)2.6.37-rc6 (including)
MRG for RHEL-5RedHatkernel-rt-0:2.6.33.7-rt29.55.el5rt*
Red Hat Enterprise Linux 6RedHatkernel-0:2.6.32-71.14.1.el6*
LinuxUbuntuhardy*
LinuxUbuntukarmic*
LinuxUbuntulucid*
LinuxUbuntumaverick*
LinuxUbuntunatty*
LinuxUbuntuupstream*
Linux-ec2Ubuntukarmic*
Linux-ec2Ubuntulucid*
Linux-ec2Ubuntumaverick*
Linux-ec2Ubuntuupstream*
Linux-fsl-imx51Ubuntukarmic*
Linux-fsl-imx51Ubuntulucid*
Linux-fsl-imx51Ubuntuupstream*
Linux-lts-backport-maverickUbuntulucid*
Linux-lts-backport-maverickUbuntuupstream*
Linux-lts-backport-nattyUbuntuupstream*
Linux-mvl-doveUbuntukarmic*
Linux-mvl-doveUbuntulucid*
Linux-mvl-doveUbuntumaverick*
Linux-mvl-doveUbuntuupstream*
Linux-source-2.6.15Ubuntudapper*
Linux-source-2.6.15Ubuntuupstream*
Linux-ti-omap4Ubuntumaverick*
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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