Vulnerability Monitor

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CVE-2018-5391

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 73 products from linux, from redhat, from redhat and 70 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-09-06T21:29:00.363

Last Modified

2024-11-21T04:08:43.897

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

6.9

Weaknesses

Type: Secondary
CWE-400
Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 4.18	Yes
Operating System	redhat	enterprise_linux_desktop	6.0	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_server	6.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_server_aus	6.4	Yes
Operating System	redhat	enterprise_linux_server_aus	6.5	Yes
Operating System	redhat	enterprise_linux_server_aus	6.6	Yes
Operating System	redhat	enterprise_linux_server_aus	7.2	Yes
Operating System	redhat	enterprise_linux_server_aus	7.3	Yes
Operating System	redhat	enterprise_linux_server_aus	7.4	Yes
Operating System	redhat	enterprise_linux_server_eus	6.7	Yes
Operating System	redhat	enterprise_linux_server_eus	7.3	Yes
Operating System	redhat	enterprise_linux_server_eus	7.4	Yes
Operating System	redhat	enterprise_linux_server_eus	7.5	Yes
Operating System	redhat	enterprise_linux_server_tus	6.6	Yes
Operating System	redhat	enterprise_linux_server_tus	7.2	Yes
Operating System	redhat	enterprise_linux_server_tus	7.3	Yes
Operating System	redhat	enterprise_linux_server_tus	7.4	Yes
Operating System	redhat	enterprise_linux_workstation	6.0	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	microsoft	windows_10	-	Yes
Operating System	microsoft	windows_10	1607	Yes
Operating System	microsoft	windows_10	1703	Yes
Operating System	microsoft	windows_10	1709	Yes
Operating System	microsoft	windows_10	1803	Yes
Operating System	microsoft	windows_7	-	Yes
Operating System	microsoft	windows_8.1	-	Yes
Operating System	microsoft	windows_rt_8.1	-	Yes
Operating System	microsoft	windows_server_2008	-	Yes
Operating System	microsoft	windows_server_2008	r2	Yes
Operating System	microsoft	windows_server_2008	r2	Yes
Operating System	microsoft	windows_server_2012	-	Yes
Operating System	microsoft	windows_server_2012	r2	Yes
Operating System	microsoft	windows_server_2016	-	Yes
Operating System	microsoft	windows_server_2016	1709	Yes
Operating System	microsoft	windows_server_2016	1803	Yes
Application	f5	big-ip_access_policy_manager	< 11.6.5.1	Yes
Application	f5	big-ip_access_policy_manager	< 12.1.5	Yes
Application	f5	big-ip_access_policy_manager	< 13.1.3	Yes
Application	f5	big-ip_access_policy_manager	< 14.0.1.1	Yes
Application	f5	big-ip_access_policy_manager	< 14.1.2.4	Yes
Application	f5	big-ip_advanced_firewall_manager	< 11.6.5.1	Yes
Application	f5	big-ip_advanced_firewall_manager	< 12.1.5	Yes
Application	f5	big-ip_advanced_firewall_manager	< 13.1.3	Yes
Application	f5	big-ip_advanced_firewall_manager	< 14.0.1.1	Yes
Application	f5	big-ip_advanced_firewall_manager	< 14.1.2.4	Yes
Application	f5	big-ip_analytics	< 11.6.5.1	Yes
Application	f5	big-ip_analytics	< 12.1.5	Yes
Application	f5	big-ip_analytics	< 13.1.3	Yes
Application	f5	big-ip_analytics	< 14.0.1.1	Yes
Application	f5	big-ip_analytics	< 14.1.2.4	Yes
Application	f5	big-ip_application_acceleration_manager	< 11.6.5.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 12.1.5	Yes
Application	f5	big-ip_application_acceleration_manager	< 13.1.3	Yes
Application	f5	big-ip_application_acceleration_manager	< 14.0.1.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 14.1.2.4	Yes
Application	f5	big-ip_application_security_manager	< 11.6.5.1	Yes
Application	f5	big-ip_application_security_manager	< 12.1.5	Yes
Application	f5	big-ip_application_security_manager	< 13.1.3	Yes
Application	f5	big-ip_application_security_manager	< 14.0.1.1	Yes
Application	f5	big-ip_application_security_manager	< 14.1.2.4	Yes
Application	f5	big-ip_domain_name_system	< 11.6.5.1	Yes
Application	f5	big-ip_domain_name_system	< 12.1.5	Yes
Application	f5	big-ip_domain_name_system	< 13.1.3	Yes
Application	f5	big-ip_domain_name_system	< 14.0.1.1	Yes
Application	f5	big-ip_domain_name_system	< 14.1.2.4	Yes
Application	f5	big-ip_edge_gateway	< 11.6.5.1	Yes
Application	f5	big-ip_edge_gateway	< 12.1.5	Yes
Application	f5	big-ip_edge_gateway	< 13.1.3	Yes
Application	f5	big-ip_edge_gateway	< 14.0.1.1	Yes
Application	f5	big-ip_edge_gateway	< 14.1.2.4	Yes
Application	f5	big-ip_fraud_protection_service	< 11.6.5.1	Yes
Application	f5	big-ip_fraud_protection_service	< 12.1.5	Yes
Application	f5	big-ip_fraud_protection_service	< 13.1.3	Yes
Application	f5	big-ip_fraud_protection_service	< 14.0.1.1	Yes
Application	f5	big-ip_fraud_protection_service	< 14.1.2.4	Yes
Application	f5	big-ip_global_traffic_manager	< 11.6.5.1	Yes
Application	f5	big-ip_global_traffic_manager	< 12.1.5	Yes
Application	f5	big-ip_global_traffic_manager	< 13.1.3	Yes
Application	f5	big-ip_global_traffic_manager	< 14.0.1.1	Yes
Application	f5	big-ip_global_traffic_manager	< 14.1.2.4	Yes
Application	f5	big-ip_link_controller	< 11.6.5.1	Yes
Application	f5	big-ip_link_controller	< 12.1.5	Yes
Application	f5	big-ip_link_controller	< 13.1.3	Yes
Application	f5	big-ip_link_controller	< 14.0.1.1	Yes
Application	f5	big-ip_link_controller	< 14.1.2.4	Yes
Application	f5	big-ip_local_traffic_manager	< 11.6.5.1	Yes
Application	f5	big-ip_local_traffic_manager	< 12.1.5	Yes
Application	f5	big-ip_local_traffic_manager	< 13.1.3	Yes
Application	f5	big-ip_local_traffic_manager	< 14.0.1.1	Yes
Application	f5	big-ip_local_traffic_manager	< 14.1.2.4	Yes
Application	f5	big-ip_policy_enforcement_manager	< 11.6.5.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 12.1.5	Yes
Application	f5	big-ip_policy_enforcement_manager	< 13.1.3	Yes
Application	f5	big-ip_policy_enforcement_manager	< 14.0.1.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 14.1.2.4	Yes
Application	f5	big-ip_webaccelerator	< 11.6.5.1	Yes
Application	f5	big-ip_webaccelerator	< 12.1.5	Yes
Application	f5	big-ip_webaccelerator	< 13.1.3	Yes
Application	f5	big-ip_webaccelerator	< 14.0.1.1	Yes
Application	f5	big-ip_webaccelerator	< 14.1.2.4	Yes
Operating System	siemens	ruggedcom_rm1224_firmware	< 6.1	Yes
Hardware	siemens	ruggedcom_rm1224	-	No
Operating System	siemens	ruggedcom_rox_ii_firmware	< 2.13.3	Yes
Hardware	siemens	ruggedcom_rox_ii	-	No
Operating System	siemens	scalance_m-800_firmware	< 6.1	Yes
Hardware	siemens	scalance_m-800	-	No
Operating System	siemens	scalance_s615_firmware	< 6.1	Yes
Hardware	siemens	scalance_s615	-	No
Operating System	siemens	scalance_sc-600_firmware	< 2.0	Yes
Hardware	siemens	scalance_sc-600	-	No
Operating System	siemens	scalance_w1700_ieee_802.11ac_firmware	< 2.0	Yes
Hardware	siemens	scalance_w1700_ieee_802.11ac	-	No
Operating System	siemens	scalance_w700_ieee_802.11a\/b\/g\/n_firmware	< 6.4	Yes
Hardware	siemens	scalance_w700_ieee_802.11a\/b\/g\/n	-	No
Operating System	siemens	simatic_net_cp_1242-7_firmware	< 3.2	Yes
Hardware	siemens	simatic_net_cp_1242-7	-	No
Operating System	siemens	simatic_net_cp_1243-1_firmware	< 3.2	Yes
Hardware	siemens	simatic_net_cp_1243-1	-	No
Operating System	siemens	simatic_net_cp_1243-7_lte_eu_firmware	< 3.2	Yes
Hardware	siemens	simatic_net_cp_1243-7_lte_eu	-	No
Operating System	siemens	simatic_net_cp_1243-7_lte_us_firmware	< 3.2	Yes
Hardware	siemens	simatic_net_cp_1243-7_lte_us	-	No
Operating System	siemens	simatic_net_cp_1243-8_irc_firmware	< 3.2	Yes
Hardware	siemens	simatic_net_cp_1243-8_irc	-	No
Operating System	siemens	simatic_net_cp_1542sp-1_firmware	< 2.1	Yes
Hardware	siemens	simatic_net_cp_1542sp-1	-	No
Operating System	siemens	simatic_net_cp_1542sp-1_irc_firmware	< 2.1	Yes
Hardware	siemens	simatic_net_cp_1542sp-1_irc	-	No
Operating System	siemens	simatic_net_cp_1543-1_firmware	< 2.2	Yes
Hardware	siemens	simatic_net_cp_1543-1	-	No
Operating System	siemens	simatic_net_cp_1543sp-1_firmware	< 2.1	Yes
Hardware	siemens	simatic_net_cp_1543sp-1	-	No
Operating System	siemens	simatic_rf185c_firmware	< 1.3	Yes
Hardware	siemens	simatic_rf185c	-	No
Operating System	siemens	simatic_rf186c_firmware	< 1.3	Yes
Hardware	siemens	simatic_rf186c	-	No
Operating System	siemens	simatic_rf186ci_firmware	< 1.3	Yes
Hardware	siemens	simatic_rf186ci	-	No
Operating System	siemens	simatic_rf188_firmware	< 1.3	Yes
Hardware	siemens	simatic_rf188	-	No
Operating System	siemens	simatic_rf188ci_firmware	< 1.3	Yes
Hardware	siemens	simatic_rf188ci	-	No
Operating System	siemens	sinema_remote_connect_server_firmware	< 2.0.1	Yes
Hardware	siemens	sinema_remote_connect_server	-	No

References

http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt Third Party Advisory ([email protected])
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-linux-en Broken Link ([email protected])
http://www.openwall.com/lists/oss-security/2019/06/28/2 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/07/06/3 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/07/06/4 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/105108 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1041476 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1041637 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2018:2785 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2791 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2846 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2924 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2925 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2933 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3083 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3096 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3459 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3540 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3586 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:3590 Third Party Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-377115.pdf Third Party Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=c30f1fc041b74ecdb072dd44f858750414b8b19f Patch, Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2018/08/msg00014.html Mailing List, Mitigation, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html Mailing List, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20181003-0002/ Third Party Advisory ([email protected])
https://support.f5.com/csp/article/K74374841?utm_source=f5support&amp%3Butm_medium=RSS ([email protected])
https://usn.ubuntu.com/3740-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3740-2/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3741-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3741-2/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3742-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3742-2/ Third Party Advisory ([email protected])
https://www.debian.org/security/2018/dsa-4272 Mitigation, Third Party Advisory ([email protected])
https://www.kb.cert.org/vuls/id/641765 Third Party Advisory, US Government Resource ([email protected])
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-004.txt Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-linux-en Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/06/28/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/07/06/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/07/06/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/105108 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1041476 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1041637 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2785 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2791 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2846 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2924 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2925 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2933 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2948 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3083 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3096 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3459 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3540 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3586 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:3590 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-377115.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=c30f1fc041b74ecdb072dd44f858750414b8b19f Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/08/msg00014.html Mailing List, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20181003-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/csp/article/K74374841?utm_source=f5support&amp%3Butm_medium=RSS (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3740-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3740-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3741-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3741-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3742-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3742-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4272 Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/641765 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.