CVE-2015-1805

Description

It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.

Statement

This issue does affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, and 7, and Red Hat Enterprise MRG 2. Future Linux kernel updates for the respective releases will 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 Score6.97.2N/A
Attack VectorLocalLocalN/A
Access ComplexityMediumLowN/A
AuthenticationNoneNoneN/A
Confidentiality ImpactCompleteCompleteN/A
Integrity ImpactCompleteCompleteN/A
Availability ImpactCompleteCompleteN/A

Vector

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

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

Acknowledgements

This issue was discovered by Red Hat.

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