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HIGH

kernel: sctp: do not reset the packet during sctp_packet_config

Published Nov 20, 2010

Description

The sctp_packet_config function in net/sctp/output.c in the Linux kernel before 2.6.35.6 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.

Affected products

Remediation

Red Hat statement

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 https://rhn.redhat.com/errata/RHSA-2010-0958.html and https://rhn.redhat.com/errata/RHSA-2010-0842.html. Future updates in Red Hat Enterprise Linux 4 and 5 may address this flaw.

Red Hat mitigation

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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References (28)

Change history (0)

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Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 20, 2010
Updated Aug 7, 2024
Reserved Sep 17, 2010
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity Important
Public date Sep 15, 2010