Public Date:
637675: CVE-2010-3432 kernel: sctp: do not reset the packet during sctp_packet_config

The MITRE CVE dictionary describes this issue as:

The sctp_packet_config function in net/sctp/output.c in the Linux kernel before performs extraneous initializations of packet data structures, which allows remote attackers to cause a denial of service (panic) via a certain sequence of SCTP traffic.

Find out more about CVE-2010-3432 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 3 as it did not include support for SCTP. This was addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via and Future updates in Red Hat Enterprise Linux 4 and 5 may address this flaw.

CVSS v2 metrics

Base Score 7.8
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
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 5 Server (kernel-rt) RHSA-2010:0958 2010-12-08
Red Hat Enterprise Linux 6 (kernel) RHSA-2010:0842 2010-11-10
Red Hat Enterprise Linux 4 (kernel) RHSA-2010:0936 2010-12-01
Red Hat Enterprise Linux 5 (kernel) RHSA-2011:0004 2011-01-04


For users that do not run applications that use SCTP, you can prevent the sctp module from being loaded by adding the following entry to the end of the /etc/modprobe.d/blacklist file:

blacklist sctp

This way, the sctp module cannot be loaded accidentally, which may occur if an application that requires SCTP is started. A reboot is not necessary for this change to take effect.

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