Public Date:
1024854: CVE-2013-4483 kernel: ipc: ipc_rcu_putref refcount races
A flaw was found in the way the ipc_rcu_putref() function in the Linux kernel's IPC implementation handled reference counter decrementing. A local, unprivileged user could use this flaw to trigger an Out of Memory (OOM) condition and, potentially, crash the system.

Find out more about CVE-2013-4483 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does affect Linux kernel packages as shipped with Red Hat Enterprise Linux 6. Future kernel updates for respective releases may address this issue.

CVSS v2 metrics

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

Base Score 4.9
Base Metrics AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

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

Red Hat Security Errata

Platform Errata Release Date
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2014:0439 2014-04-28
Red Hat Enterprise Linux Server EUS (v. 6.5) (kernel) RHSA-2015:0284 2015-03-03
Red Hat Enterprise Linux version 6 (kernel) RHSA-2014:1392 2014-10-13
Red Hat Enterprise Linux version 5 (kernel) RHSA-2014:0285 2014-03-12

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 kernel Not affected


Red Hat would like to thank Vladimir Davydov (Parallels) for reporting this issue.