CVE-2012-1097

Description

From CVE.org

The regset (aka register set) feature in the Linux kernel before 3.2.10 does not properly handle the absence of .get and .set methods, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a (1) PTRACE_GETREGSET or (2) PTRACE_SETREGSET ptrace call.

Statement

This issue did not affect the Linux kernel as shipped with Red Hat Enterprise Linux 5 as it did not backport upstream commits 4206d3aa and 5bde4d18.

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).

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score4.97.2N/A
Attack VectorLocalLocalN/A
Access ComplexityLowLowN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactNoneCompleteN/A
Integrity ImpactNoneCompleteN/A
Availability ImpactCompleteCompleteN/A

Vector

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

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

Acknowledgements

Red Hat would like to thank H. Peter Anvin for reporting this issue.

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