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Fencer Intel
high 7.5

CVE-2014-3673 json

The SCTP implementation in the Linux kernel through 3.17.2 allows remote attackers to cause a denial of service (system crash) via a malfor…

published 2014-11-10 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-3621

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.5%
EPSS 7.5% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

The SCTP implementation in the Linux kernel through 3.17.2 allows remote attackers to cause a denial of service (system crash) via a malformed ASCONF chunk, related to net/sctp/sm_make_chunk.c and net/sctp/sm_statefuns.c.

Patch / fix

  • linux linux_kernel 3.2.64, 3.4.107, 3.10.61, 3.12.34, 3.14.25, 3.16.35, 3.17.4
  • linux Debian 14, Debian 13, Debian 12 3.16.7-1

debian advisories DEBIAN-CVE-2014-3673

  • linux Ubuntu 14.04 LTS 3.13.0-41.70
  • linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-26.35~14.04.1

ubuntu advisories UBUNTU-CVE-2014-3673

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 2.6.32-504.3.3.el6
  • perf RHEL 6 2.6.32-504.3.3.el6
  • python-perf RHEL 6 2.6.32-504.3.3.el6
  • kernel-kdump RHEL 6 2.6.32-504.3.3.el6
  • kernel-firmware RHEL 6 2.6.32-504.3.3.el6
  • kernel-bootwrapper RHEL 6 2.6.32-504.3.3.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-504.3.3.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-504.3.3.el6

red hat advisories RHSA-2014:1997RHSA-2015:0043RHSA-2015:0062RHSA-2014:1971RHSA-2015:0115

  • kernel-ec2 SLE Module for Public Cloud 12 3.12.38-44.1
  • kernel-xen SLES for SAP 12, SLES 12, SLED 12 3.12.38-44.1
  • kernel-syms SLES for SAP 12, SLES 12, SLED 12 3.12.38-44.1
  • kernel-source SLES for SAP 12, SLES 12, SLED 12 3.12.38-44.1
  • kernel-default SLES for SAP 12, SLES 12, SLED 12 +1 more 3.12.38-44.1
  • kernel-obs-build SLE Software Development Kit 12 3.12.38-44.1
  • kgraft-patch-SLE12_Update_3 SLE Live Patching 12 1-2.2

suse advisories SUSE-SU-2015:0529-1

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-2014-3673 updated cvss 7.1

kernel: sctp: skb_over_panic when receiving malformed ASCONF chunks

  • Red Hat Enterprise Linux 5 kernel
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-123.13.1.el7, kernel 3.10.0-123.13.1.el7, kernel-tools 3.10.0-123.13.1.el7, kernel-tools-libs 3.10.0-123.13.1.el7, kernel-abi-whitelists 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7
    fixed: vendor fix RHSA-2014:1971
  • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4) kernel 2.6.32-358.55.1.el6, python-perf 2.6.32-358.55.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.55.1.el6
    fixed: vendor fix RHSA-2015:0043
  • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) kernel 2.6.32-431.46.2.el6, python-perf 2.6.32-431.46.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.46.2.el6
    fixed: vendor fix RHSA-2015:0062
  • Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-123.13.1.el7, kernel 3.10.0-123.13.1.el7, kernel-tools 3.10.0-123.13.1.el7, kernel-tools-libs 3.10.0-123.13.1.el7, kernel-abi-whitelists 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7
    fixed: vendor fix RHSA-2014:1971
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-504.3.3.el6, kernel 2.6.32-504.3.3.el6, kernel-firmware 2.6.32-504.3.3.el6, kernel-abi-whitelists 2.6.32-504.3.3.el6, kernel-debuginfo-common-i686 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-504.3.3.el6, kernel-debuginfo-common-i686 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-504.3.3.el6, kernel 2.6.32-504.3.3.el6, kernel-firmware 2.6.32-504.3.3.el6, kernel-abi-whitelists 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6
    fixed: vendor fix RHSA-2014:1997
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.4) perf 2.6.32-358.55.1.el6, kernel 2.6.32-358.55.1.el6, kernel-firmware 2.6.32-358.55.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.55.1.el6
    fixed: vendor fix RHSA-2015:0043
show 15 more
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.5) perf 2.6.32-431.46.2.el6, kernel 2.6.32-431.46.2.el6, kernel-firmware 2.6.32-431.46.2.el6, kernel-abi-whitelists 2.6.32-431.46.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.46.2.el6
    fixed: vendor fix RHSA-2015:0062
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-504.3.3.el6, kernel 2.6.32-504.3.3.el6, kernel-kdump 2.6.32-504.3.3.el6, kernel-firmware 2.6.32-504.3.3.el6, kernel-bootwrapper 2.6.32-504.3.3.el6, kernel-abi-whitelists 2.6.32-504.3.3.el6, +4 more
    fixed: vendor fix RHSA-2014:1997
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-123.13.1.el7, kernel 3.10.0-123.13.1.el7, kernel-kdump 3.10.0-123.13.1.el7, kernel-tools 3.10.0-123.13.1.el7, kernel-tools-libs 3.10.0-123.13.1.el7, kernel-bootwrapper 3.10.0-123.13.1.el7, +4 more
    fixed: vendor fix RHSA-2014:1971
  • Red Hat Enterprise Linux Server AUS (v. 6.2) perf 2.6.32-220.58.1.el6, kernel 2.6.32-220.58.1.el6, kernel-firmware 2.6.32-220.58.1.el6, kernel-debuginfo-common-x86_64 2.6.32-220.58.1.el6
    fixed: vendor fix RHSA-2015:0115
  • Red Hat Enterprise Linux Server EUS (v. 6.4) perf 2.6.32-358.55.1.el6, kernel 2.6.32-358.55.1.el6, kernel-kdump 2.6.32-358.55.1.el6, kernel-firmware 2.6.32-358.55.1.el6, kernel-bootwrapper 2.6.32-358.55.1.el6, kernel-debuginfo-common-i686 2.6.32-358.55.1.el6, +3 more
    fixed: vendor fix RHSA-2015:0043
  • Red Hat Enterprise Linux Server EUS (v. 6.5) perf 2.6.32-431.46.2.el6, kernel 2.6.32-431.46.2.el6, kernel-kdump 2.6.32-431.46.2.el6, kernel-firmware 2.6.32-431.46.2.el6, kernel-bootwrapper 2.6.32-431.46.2.el6, kernel-abi-whitelists 2.6.32-431.46.2.el6, +4 more
    fixed: vendor fix RHSA-2015:0062
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-504.3.3.el6, kernel-debuginfo-common-i686 2.6.32-504.3.3.el6, kernel-debuginfo-common-ppc64 2.6.32-504.3.3.el6, kernel-debuginfo-common-s390x 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6
    fixed: vendor fix RHSA-2014:1997
  • Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-123.13.1.el7, kernel-debuginfo-common-ppc64 3.10.0-123.13.1.el7, kernel-debuginfo-common-s390x 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7
    fixed: vendor fix RHSA-2014:1971
  • Red Hat Enterprise Linux Server Optional AUS (v. 6.2) kernel 2.6.32-220.58.1.el6, python-perf 2.6.32-220.58.1.el6, kernel-debuginfo-common-x86_64 2.6.32-220.58.1.el6
    fixed: vendor fix RHSA-2015:0115
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.4) kernel 2.6.32-358.55.1.el6, python-perf 2.6.32-358.55.1.el6, kernel-debuginfo-common-i686 2.6.32-358.55.1.el6, kernel-debuginfo-common-ppc64 2.6.32-358.55.1.el6, kernel-debuginfo-common-s390x 2.6.32-358.55.1.el6, kernel-debuginfo-common-x86_64 2.6.32-358.55.1.el6
    fixed: vendor fix RHSA-2015:0043
  • Red Hat Enterprise Linux Server Optional EUS (v. 6.5) kernel 2.6.32-431.46.2.el6, python-perf 2.6.32-431.46.2.el6, kernel-debuginfo-common-i686 2.6.32-431.46.2.el6, kernel-debuginfo-common-ppc64 2.6.32-431.46.2.el6, kernel-debuginfo-common-s390x 2.6.32-431.46.2.el6, kernel-debuginfo-common-x86_64 2.6.32-431.46.2.el6
    fixed: vendor fix RHSA-2015:0062
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-504.3.3.el6, kernel 2.6.32-504.3.3.el6, kernel-firmware 2.6.32-504.3.3.el6, kernel-abi-whitelists 2.6.32-504.3.3.el6, kernel-debuginfo-common-i686 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6
    fixed: vendor fix RHSA-2014:1997
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-123.13.1.el7, kernel 3.10.0-123.13.1.el7, kernel-tools 3.10.0-123.13.1.el7, kernel-tools-libs 3.10.0-123.13.1.el7, kernel-abi-whitelists 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7
    fixed: vendor fix RHSA-2014:1971
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-504.3.3.el6, kernel-debuginfo-common-i686 2.6.32-504.3.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.3.3.el6
    fixed: vendor fix RHSA-2014:1997
  • Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-123.13.1.el7, kernel-debuginfo-common-x86_64 3.10.0-123.13.1.el7
    fixed: vendor fix RHSA-2014:1971

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

7.46% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/9de7922bc709eee2f609cd01d98aaedc4cf5ea74 referenced PoC, tagged "exploit" by a source, unverified
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1147850 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

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.