CVE-2018-5390 | Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service

Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service.

Published: 2018-08-06 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-5390 is rated High Risk (69.8/100): CVSS High severity, with high exploitation likelihood (EPSS 73.54%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +62.38% over the last day, indicating growing attacker interest. 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-2018-5390

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 2026-06-15 11.16% 73.54% +62.38%
2 2026-06-04 10.60% 11.16% +0.56%
3 2026-04-28 — 10.60% —

Full EPSS history (32 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-5390

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C 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:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2018-5390

OS Trackers for CVE-2018-5390

vendor priority summary link
debian not yet assigned CVE-2018-5390 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-2018-5390
redhat high — https://access.redhat.com/security/cve/CVE-2018-5390
suse medium CVE-2018-5390 severity moderate: SUSE including 340 source package names (cluster-md-kmp-azure-4.12.14-5.8.1, cluster-md-kmp-default-4.12.14-120.1, …), 698 product×package rows across 100 product lines (SUSE CaaS Platform 3.0, SUSE CaaS Platform 4.0, … (100 product lines)): Fixed 539, Known Not Affected 159. https://www.suse.com/security/cve/CVE-2018-5390/
ubuntu high CVE-2018-5390 high priority: Ubuntu including 24 source packages (linux, linux-aws, …), 120 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): DNE 61, released 45, not-affected 12, ignored 2. https://ubuntu.com/security/CVE-2018-5390

Affected software / configurations for CVE-2018-5390

Vendor Product Version Raw CPE
redhat virtualization 4.0 cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 6.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:6.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 6.5 cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 6.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 6.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:6.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 6.7 cpe:2.3:o:redhat:enterprise_linux_server_eus:6.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 6.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:6.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
linux linux_kernel >= 4.9, < 4.18 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 4.18 cpe:2.3:o:linux:linux_kernel:4.18:rc1:*:*:*:*:*:*
linux linux_kernel 4.18 cpe:2.3:o:linux:linux_kernel:4.18:rc2:*:*:*:*:*:*
linux linux_kernel 4.18 cpe:2.3:o:linux:linux_kernel:4.18:rc3:*:*:*:*:*:*
linux linux_kernel 4.18 cpe:2.3:o:linux:linux_kernel:4.18:rc4:*:*:*:*:*:*
linux linux_kernel 4.18 cpe:2.3:o:linux:linux_kernel:4.18:rc5:*:*:*:*:*:*
linux linux_kernel 4.18 cpe:2.3:o:linux:linux_kernel:4.18:rc6:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
hp aruba_airwave_amp < 8.2.7.1 cpe:2.3:a:hp:aruba_airwave_amp:*:*:*:*:*:*:*:*
hp aruba_clearpass_policy_manager >= 6.6.0, <= 6.6.9 cpe:2.3:a:hp:aruba_clearpass_policy_manager:*:*:*:*:*:*:*:*
hp aruba_clearpass_policy_manager >= 6.7.0, <= 6.7.5 cpe:2.3:a:hp:aruba_clearpass_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 14.0.0 cpe:2.3:a:f5:big-ip_access_policy_manager:14.0.0:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip_advanced_firewall_manager 14.0.0 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:14.0.0:*:*:*:*:*:*:*
f5 big-ip_analytics >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip_analytics 14.0.0 cpe:2.3:a:f5:big-ip_analytics:14.0.0:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_acceleration_manager 14.0.0 cpe:2.3:a:f5:big-ip_application_acceleration_manager:14.0.0:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip_application_security_manager 14.0.0 cpe:2.3:a:f5:big-ip_application_security_manager:14.0.0:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
f5 big-ip_domain_name_system 14.0.0 cpe:2.3:a:f5:big-ip_domain_name_system:14.0.0:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 11.5.1., <= 11.6.3 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip_edge_gateway 14.0.0 cpe:2.3:a:f5:big-ip_edge_gateway:14.0.0:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
f5 big-ip_fraud_protection_service 14.0.0 cpe:2.3:a:f5:big-ip_fraud_protection_service:14.0.0:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_global_traffic_manager 14.0.0 cpe:2.3:a:f5:big-ip_global_traffic_manager:14.0.0:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 12.1.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller >= 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
f5 big-ip_link_controller 14.0.0 cpe:2.3:a:f5:big-ip_link_controller:14.0.0:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 11.5.1, <= 11.6.3 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager >= 12.0.0, <= 12.1.3 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager > 13.0.0, <= 13.1.1 cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
f5 big-ip_local_traffic_manager 14.0.0 cpe:2.3:a:f5:big-ip_local_traffic_manager:14.0.0:*:*:*:*:*:*:*

References for CVE-2018-5390

URL Tags
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt Third Party Advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20181031-02-linux-en Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/06/28/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/07/06/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/07/06/4 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/104976 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041424 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041434 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:2384 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2395 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2402 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2403 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2645 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2776 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2785 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2789 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2790 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2791 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2924 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2933 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-377115.pdf Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=1a4f14bab1868b443f0dd3c55b689a478f82e72e Patch Vendor Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00014.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20180815-0003/ Third Party Advisory
https://support.f5.com/csp/article/K95343321 Third Party Advisory
https://support.f5.com/csp/article/K95343321?utm_source=f5support&amp%3Butm_medium=RSS
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180824-linux-tcp Third Party Advisory
https://usn.ubuntu.com/3732-1/ Third Party Advisory
https://usn.ubuntu.com/3732-2/ Third Party Advisory
https://usn.ubuntu.com/3741-1/ Third Party Advisory
https://usn.ubuntu.com/3741-2/ Third Party Advisory
https://usn.ubuntu.com/3742-1/ Third Party Advisory
https://usn.ubuntu.com/3742-2/ Third Party Advisory
https://usn.ubuntu.com/3763-1/ Third Party Advisory
https://www.a10networks.com/support/security-advisories/tcp-ip-cve-2018-5390-segmentsmack Mitigation Third Party Advisory
https://www.debian.org/security/2018/dsa-4266 Third Party Advisory
https://www.kb.cert.org/vuls/id/962459 Third Party Advisory US Government Resource
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html Patch Third Party Advisory
https://www.synology.com/support/security/Synology_SA_18_41 Third Party Advisory
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