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 val…

published 2014-07-03 12 y ago modified 2026-06-17 4 mo ago also EUVD-2014-4589

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 5.9%; EPSS 5.9% chance of exploitation in 30 days, percentile 93%
public exploits: 0; none known

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.

Patch / fix

fixed in 1 distros 3 links 1

linux linux_kernel 3.15.2

debian ubuntu red hat

linux Debian 14, Debian 13, Debian 12 3.14.9-1

debian advisories DEBIAN-CVE-2014-4667

linux Ubuntu 14.04 LTS 3.13.0-35.62

ubuntu advisories UBUNTU-CVE-2014-4667

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 6 2.6.32-431.29.2.el6
perf RHEL 6 2.6.32-431.29.2.el6
python-perf RHEL 6 2.6.32-431.29.2.el6
kernel-kdump RHEL 6 2.6.32-431.29.2.el6
kernel-firmware RHEL 6 2.6.32-431.29.2.el6
kernel-bootwrapper RHEL 6 2.6.32-431.29.2.el6
kernel-abi-whitelists RHEL 6 2.6.32-431.29.2.el6
kernel-debuginfo-common-i686 RHEL 6 2.6.32-431.29.2.el6

red hat advisories RHSA-2014:1167 RHSA-2014:1023 RHSA-2014:0913

github.com/torvalds/linux@d3217b1 commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2014-4667 updated 2026-11-07 cvss 5.0

kernel: sctp: sk_ack_backlog wrap-around problem

Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-abi-whitelists 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-abi-whitelists 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-kdump 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-bootwrapper 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, +4 more
fixed: vendor fix RHSA-2014:1167
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-kdump 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-bootwrapper 3.10.0-123.6.3.el7, +4 more
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Server Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-ppc64 2.6.32-431.29.2.el6, kernel-debuginfo-common-s390x 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6
fixed: vendor fix RHSA-2014:1167
Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-ppc64 3.10.0-123.6.3.el7, kernel-debuginfo-common-s390x 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-431.29.2.el6, kernel 2.6.32-431.29.2.el6, kernel-firmware 2.6.32-431.29.2.el6, kernel-abi-whitelists 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6
fixed: vendor fix RHSA-2014:1167
Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-123.6.3.el7, kernel 3.10.0-123.6.3.el7, kernel-tools 3.10.0-123.6.3.el7, kernel-tools-libs 3.10.0-123.6.3.el7, kernel-abi-whitelists 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat Enterprise Linux Workstation Optional (v. 6) kernel 2.6.32-431.29.2.el6, python-perf 2.6.32-431.29.2.el6, kernel-debuginfo-common-i686 2.6.32-431.29.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.29.2.el6
fixed: vendor fix RHSA-2014:1167

show 3 more

Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-123.6.3.el7, kernel-debuginfo-common-x86_64 3.10.0-123.6.3.el7
fixed: vendor fix RHSA-2014:1023
Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.33-rt32.43.el6rt, kernel-rt-trace 3.10.33-rt32.43.el6rt, kernel-rt-vanilla 3.10.33-rt32.43.el6rt, kernel-rt-firmware 3.10.33-rt32.43.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.33-rt32.43.el6rt
fixed: vendor fix RHSA-2014:0913
Red Hat Enterprise Linux 5 kernel
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.93% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Technology feeds

Linux kernel rss critical rss

References

github.com /torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee
patch, third-party-advisory
lists.opensuse.org /opensuse-security-announce/2014-10/msg00006.html
vendor-advisory, mailing-list, third-party-advisory
ubuntu.com /usn/USN-2335-1
vendor-advisory, third-party-advisory
ubuntu.com /usn/USN-2334-1
vendor-advisory, third-party-advisory
lists.opensuse.org /opensuse-security-announce/2014-10/msg00007.html
vendor-advisory, mailing-list, third-party-advisory
debian.org /security/2014/dsa-2992
vendor-advisory, third-party-advisory
lists.opensuse.org /opensuse-security-announce/2015-04/msg00020.html
vendor-advisory, mailing-list, third-party-advisory
kernel.org /pub/linux/kernel/v3.x/ChangeLog-3.15.2
release-notes, vendor-advisory
openwall.com /lists/oss-security/2014/06/27/11
mailing-list, third-party-advisory
secunia.com /advisories/59790
third-party-advisory
secunia.com /advisories/60564
third-party-advisory
securityfocus.com /bid/68224
vdb-entry, third-party-advisory
secunia.com /advisories/59777
third-party-advisory
secunia.com /advisories/60596
third-party-advisory
linux.oracle.com /errata/ELSA-2014-3068.html
third-party-advisory
linux.oracle.com /errata/ELSA-2014-3069.html
third-party-advisory
bugzilla.redhat.com /show_bug.cgi?id=1113967
issue-tracking, third-party-advisory
git.kernel.org /?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d3217b15a19a4779c39b212358a5c71d725822ee

Sources

CVE List CVE-2014-4667
NVD CVE-2014-4667

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary