Public Date:
1113967: CVE-2014-4667 kernel: sctp: sk_ack_backlog wrap-around problem
An integer underflow flaw was found in the way the Linux kernel's Stream Control Transmission Protocol (SCTP) implementation processed certain COOKIE_ECHO packets. By sending a specially crafted SCTP packet, a remote attacker could use this flaw to prevent legitimate connections to a particular SCTP server socket to be made.

Find out more about CVE-2014-4667 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5.

CVSS v2 metrics

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

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

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (kernel) RHSA-2014:1023 2014-08-06
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2014:0913 2014-07-22
Red Hat Enterprise Linux 6 (kernel) RHSA-2014:1167 2014-09-09

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 kernel Not affected


Red Hat would like to thank Gopal Reddy Kodudula of Nokia Siemens Networks for reporting this issue.
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