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TI-2014-02028 Aliases CVE-2014-2523GHSA-563v-66w5-x93f

net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP…

Priority MEDIUM 55CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly, which allows remote attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a DCCP packet that triggers a call to the (1) dccp_new, (2) dccp_packet, or (3) dccp_error function.

Why it matters now

EPSS 0.10385 95th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 3.2.57; 3.3 to before 3.4.86; 3.5 to before 3.10.36; 3.11 to before 3.12.17; 3.13.0 to before 3.13.9VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*10.04VulnerableCanonical
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.2.57; 3.3 to before 3.4.86; 3.5 to before 3.10.36; 3.11 to before 3.12.17; 3.13.0 to before 3.13.9 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* Versions 10.04 Vulnerable ·Canonical

Remediation

Red Hat 5 advisories

  • RHSA-2014:0634 Released 2014-06-04 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4) kernel-2.6.32-358.44.1.el6, python-perf-2.6.32-358.44.1.el6
    • Red Hat Enterprise Linux HPC Node EUS (v. 6.4) kernel-2.6.32-358.44.1.el6, kernel-debug-2.6.32-358.44.1.el6, kernel-debug-devel-2.6.32-358.44.1.el6 +4
    • Red Hat Enterprise Linux Server EUS (v. 6.4) kernel-2.6.32-358.44.1.el6, kernel-bootwrapper-2.6.32-358.44.1.el6, kernel-debug-2.6.32-358.44.1.el6 +7
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.4) kernel-2.6.32-358.44.1.el6, python-perf-2.6.32-358.44.1.el6
  • RHSA-2014:0593 Released 2014-06-03 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Compute Node EUS (v. 6.3) kernel-2.6.32-279.46.1.el6, kernel-debug-2.6.32-279.46.1.el6, kernel-debug-devel-2.6.32-279.46.1.el6 +5
    • Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3) kernel-2.6.32-279.46.1.el6, python-perf-2.6.32-279.46.1.el6
    • Red Hat Enterprise Linux Server EUS (v. 6.3) kernel-2.6.32-279.46.1.el6, kernel-bootwrapper-2.6.32-279.46.1.el6, kernel-debug-2.6.32-279.46.1.el6 +8
    • Red Hat Enterprise Linux Server Optional EUS (v. 6.3) kernel-2.6.32-279.46.1.el6, python-perf-2.6.32-279.46.1.el6
  • RHSA-2014:0520 Released 2014-05-20 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 6.2) kernel-2.6.32-220.51.1.el6, kernel-debug-2.6.32-220.51.1.el6, kernel-debug-devel-2.6.32-220.51.1.el6 +5
    • Red Hat Enterprise Linux Server Optional AUS (v. 6.2) kernel-2.6.32-220.51.1.el6, python-perf-2.6.32-220.51.1.el6
Show 2 more Red Hat advisories
  • RHSA-2014:0475 Released 2014-05-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-431.17.1.el6, kernel-abi-whitelists-2.6.32-431.17.1.el6, kernel-debug-2.6.32-431.17.1.el6 +5
    • Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-431.17.1.el6, python-perf-2.6.32-431.17.1.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-431.17.1.el6, kernel-abi-whitelists-2.6.32-431.17.1.el6, kernel-debug-2.6.32-431.17.1.el6 +5
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-431.17.1.el6, python-perf-2.6.32-431.17.1.el6
    • Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-431.17.1.el6, kernel-abi-whitelists-2.6.32-431.17.1.el6, kernel-bootwrapper-2.6.32-431.17.1.el6 +8
    • Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-431.17.1.el6, python-perf-2.6.32-431.17.1.el6
    • Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-431.17.1.el6, kernel-abi-whitelists-2.6.32-431.17.1.el6, kernel-debug-2.6.32-431.17.1.el6 +5
    • Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-431.17.1.el6, python-perf-2.6.32-431.17.1.el6
  • RHSA-2014:0439 Released 2014-04-28 · Red Hat rating Important
    kernel-rt security, bug fix, and enhancement update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-3.10.33-rt32.33.el6rt, kernel-rt-debug-3.10.33-rt32.33.el6rt, kernel-rt-debug-devel-3.10.33-rt32.33.el6rt +7

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Compute Node EUS (v. 6.3)Fixed RHSA-2014:0593
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3)Fixed RHSA-2014:0593
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4)Fixed RHSA-2014:0634
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux HPC Node EUS (v. 6.4)Fixed RHSA-2014:0634
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux Server AUS (v. 6.2)Fixed RHSA-2014:0520
Red Hat Enterprise Linux Server EUS (v. 6.3)Fixed RHSA-2014:0593
Red Hat Enterprise Linux Server EUS (v. 6.4)Fixed RHSA-2014:0634
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux Server Optional AUS (v. 6.2)Fixed RHSA-2014:0520
Red Hat Enterprise Linux Server Optional EUS (v. 6.3)Fixed RHSA-2014:0593
Red Hat Enterprise Linux Server Optional EUS (v. 6.4)Fixed RHSA-2014:0634
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2014:0475
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2014:0475
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2014:0439
Not affected: 8 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux Desktop (v. 6)
  • Red Hat Enterprise Linux HPC Node (v. 6)
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.4)
  • Red Hat Enterprise Linux Server (v. 6)
  • Red Hat Enterprise Linux Server EUS (v. 6.4)
  • Red Hat Enterprise Linux Workstation (v. 6)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2014-2523
  2. 2026-10-03 Alias added: GHSA-563v-66w5-x93f
  3. 2026-11-05 Affected versions changed · Red Hat

References

Patch 2

Advisory 3

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences