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CVE-2015-7509

Description

A flaw was found in the way the Linux kernel's ext4 file system driver handled non-journal file systems with an orphan list. An attacker with physical access to the system could use this flaw to crash the system or, although unlikely, escalate their privileges on the system.

Statement

This problem did not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. This issue is not planned to be corrected in future updates for Red Hat Enterprise Linux 5.

This issue is rated low as exploiting it requires physical (to plug in specially prepared usb disk) or root (to mount specially prepared filesystem) access to the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

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 Score64.9N/A
Attack VectorLocalLocalN/A
Access ComplexityHighLowN/A
AuthenticationSingleNoneN/A
Confidentiality ImpactCompleteNoneN/A
Integrity ImpactCompleteNoneN/A
Availability ImpactCompleteCompleteN/A

Vector

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

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

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