CVE-2014-4667

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.

Published: 2014-07-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-4667 is rated Moderate Risk (52.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.93%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-4667

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-18 5.81% 5.93% +0.11%
2 2026-06-15 14.14% 5.81% -8.32%
3 2025-05-27 — 14.14% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-4667

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-4667

OS Trackers for CVE-2014-4667

vendor priority summary link
debian not yet assigned CVE-2014-4667 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-4667
redhat medium — https://access.redhat.com/security/cve/CVE-2014-4667
ubuntu medium CVE-2014-4667 medium priority: Ubuntu including 31 source packages (linux, linux-2.6, …), 306 status rows across 11 suites (lucid, precise, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 215, released 38, ignored 34, not-affected 19. https://ubuntu.com/security/CVE-2014-4667

Affected software / configurations for CVE-2014-4667

Vendor Product Version Raw CPE
linux linux_kernel < 3.15.2 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
suse linux_enterprise_desktop 11 cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:*
suse linux_enterprise_real_time_extension 11 cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp3:*:*:*:*:*:*
suse linux_enterprise_server 10 cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:ltss:*:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:-:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

References for CVE-2014-4667

URL Tags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d3217b15a19a4779c39b212358a5c71d725822ee
http://linux.oracle.com/errata/ELSA-2014-3068.html Third Party Advisory
http://linux.oracle.com/errata/ELSA-2014-3069.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html Mailing List Third Party Advisory
http://secunia.com/advisories/59777 Third Party Advisory
http://secunia.com/advisories/59790 Third Party Advisory
http://secunia.com/advisories/60564 Third Party Advisory
http://secunia.com/advisories/60596 Third Party Advisory
http://www.debian.org/security/2014/dsa-2992 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2014/06/27/11 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/68224 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2334-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2335-1 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1113967 Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee Patch Third Party Advisory
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