CVE-2016-4558

Impact:
Important
Public Date:
2016-04-28
CWE:
CWE-122
Bugzilla:
1334303: CVE-2016-4558 kernel: bpf: refcnt overflow
A flaw was found in the Linux kernel's implementation of BPF in which systems can application can overflow a 32 bit refcount in both program and map refcount. This refcount can wrap and end up a user after free.

Find out more about CVE-2016-4558 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 4, 5, 6, 7 and Red Hat Enterprise MRG 2.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 7.2
Base Metrics AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Not affected
Red Hat Enterprise Linux 7 kernel-rt Not affected
Red Hat Enterprise Linux 7 kernel Not affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected
Last Modified