CVE-2011-1747

Description

From CVE.org

The agp subsystem in the Linux kernel 2.6.38.5 and earlier does not properly restrict memory allocation by the (1) AGPIOC_RESERVE and (2) AGPIOC_ALLOCATE ioctls, which allows local users to cause a denial of service (memory consumption) by making many calls to these ioctls.

Statement

Red Hat Security Response team does not consider this bug to be security relevant one due to the privileges (CAP_SYS_RAWIO) required to exploit this issue.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score4.44.7N/A
Attack VectorLocalLocalN/A
Access ComplexityMediumMediumN/A
AuthenticationSingleNoneN/A
Confidentiality ImpactNoneNoneN/A
Integrity ImpactNoneNoneN/A
Availability ImpactCompleteCompleteN/A

Vector

Red Hat: AV:L/AC:M/Au:S/C:N/I:N/A:C

NVD: AV:L/AC:M/Au:N/C:N/I:N/A:C

Acknowledgements

Red Hat would like to thank Vasiliy Kulikov (Openwall) for reporting this issue.

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