CVE-2013-1792

Description

From CVE.org

Race condition in the install_user_keyrings function in security/keys/process_keys.c in the Linux kernel before 3.8.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) via crafted keyctl system calls that trigger keyring operations in simultaneous threads.

Statement

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise MRG 2 may address 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).

CVSS v2 Score Breakdown

Red HatNVDcve.org
Base Score44.7N/A
Attack VectorLocalLocalN/A
Access ComplexityHighMediumN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactNoneNoneN/A
Integrity ImpactNoneNoneN/A
Availability ImpactCompleteCompleteN/A

Vector

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

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

Acknowledgements

This issue was discovered by Mateusz Guzik (Red Hat EMEA GSS SEG Team).

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