Vulnerability CVE-2014-4667
Published: 2014-07-03

Description:
The sctp_association_free function in net/sctp/associola.c in the Linux kernel before 3.15.2 does not properly manage a certain backlog value, which allows remote attackers to cause a denial of service (socket outage) via a crafted SCTP packet.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Linux Kernel sctp sk_ack_backlog wrap-around problem
Neil Horman
29.06.2014

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d3217b15a19a4779c39b212358a5c71d725822ee
http://linux.oracle.com/errata/ELSA-2014-3068.html
http://linux.oracle.com/errata/ELSA-2014-3069.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://secunia.com/advisories/59790
http://secunia.com/advisories/60596
http://www.debian.org/security/2014/dsa-2992
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2
http://www.openwall.com/lists/oss-security/2014/06/27/11
http://www.securityfocus.com/bid/68224
http://www.ubuntu.com/usn/USN-2334-1
http://www.ubuntu.com/usn/USN-2335-1
https://bugzilla.redhat.com/show_bug.cgi?id=1113967
https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee
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