CVE-2014-7826

Description

An out-of-bounds memory access flaw, CVE-2014-7825, was found in the syscall tracing functionality of the Linux kernel's perf subsystem. A local, unprivileged user could use this flaw to crash the system. Additionally, an out-of-bounds memory access flaw, CVE-2014-7826, was found in the syscall tracing functionality of the Linux kernel's ftrace subsystem. On a system with ftrace syscall tracing enabled, a local, unprivileged user could use this flaw to crash the system, or escalate their privileges.

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 Score47.2N/A
Attack VectorLocalLocalN/A
Access ComplexityHighLowN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactNoneCompleteN/A
Integrity ImpactNoneCompleteN/A
Availability ImpactCompleteCompleteN/A

Vector

Red Hat: AV:L/AC:H/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 Robert Święcki for reporting this issue.

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