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CVE-2016-0728

Description

A use-after-free flaw was found in the way the Linux kernel's key management subsystem handled keyring object reference counting in certain error path of the join_session_keyring() function. A local, unprivileged user could use this flaw to escalate their privileges on the system.

Statement

This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 5 and 6.

Refer to https://access.redhat.com/node/2131021 for further information.

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 Score7.27.2N/A
Attack VectorLocalLocalN/A
Access ComplexityLowLowN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactCompleteCompleteN/A
Integrity ImpactCompleteCompleteN/A
Availability ImpactCompleteCompleteN/A

Vector

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

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

Acknowledgements

Red Hat would like to thank the Perception Point research team for reporting this issue.

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