high
7.8
CWE
400
Advisory Published
CVE Published
CVE Published
Updated

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

First published: Tue Jul 17 2018(Updated: )

A flaw named SegmentSmack was found in the way the Linux kernel handled specially crafted TCP packets. A remote attacker could use this flaw to trigger time and calculation expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() functions by sending specially modified packets within ongoing TCP sessions which could lead to a CPU saturation and hence a denial of service on the system. Maintaining the denial of service condition requires continuous two-way TCP sessions to a reachable open port, thus the attacks cannot be performed using spoofed IP addresses.

Credit: cret@cert.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel<0:2.6.32-754.3.5.el6
0:2.6.32-754.3.5.el6
redhat/kernel<0:2.6.32-358.93.1.el6
0:2.6.32-358.93.1.el6
redhat/kernel<0:2.6.32-431.93.2.el6
0:2.6.32-431.93.2.el6
redhat/kernel<0:2.6.32-504.76.2.el6
0:2.6.32-504.76.2.el6
redhat/kernel<0:2.6.32-573.62.1.el6
0:2.6.32-573.62.1.el6
redhat/kernel-rt<0:3.10.0-862.11.6.rt56.819.el7
0:3.10.0-862.11.6.rt56.819.el7
redhat/kernel<0:3.10.0-862.11.6.el7
0:3.10.0-862.11.6.el7
redhat/kernel-alt<0:4.14.0-115.el7a
0:4.14.0-115.el7a
redhat/kernel<0:3.10.0-327.73.1.el7
0:3.10.0-327.73.1.el7
redhat/kernel<0:3.10.0-514.58.1.el7
0:3.10.0-514.58.1.el7
redhat/kernel<0:3.10.0-693.39.1.el7
0:3.10.0-693.39.1.el7
redhat/kernel-rt<1:3.10.0-693.39.1.rt56.629.el6
1:3.10.0-693.39.1.rt56.629.el6
redhat/redhat-release-virtualization-host<0:4.2-5.2.el7
0:4.2-5.2.el7
Red Hat Enterprise Virtualization=4.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux server=7.0
redhat enterprise Linux server aus=6.4
redhat enterprise Linux server aus=6.5
redhat enterprise Linux server aus=6.6
redhat enterprise Linux server aus=7.2
redhat enterprise Linux server aus=7.3
redhat enterprise Linux server aus=7.4
redhat enterprise Linux server eus=6.4
redhat enterprise Linux server eus=6.7
redhat enterprise Linux server eus=7.2
redhat enterprise Linux server eus=7.3
redhat enterprise Linux server eus=7.4
redhat enterprise Linux server eus=7.5
redhat enterprise Linux server tus=6.6
redhat enterprise Linux server tus=7.2
redhat enterprise Linux server tus=7.3
redhat enterprise Linux server tus=7.4
redhat enterprise Linux workstation=7.0
Linux Kernel>=4.9<4.18
Linux Kernel=4.18-rc1
Linux Kernel=4.18-rc2
Linux Kernel=4.18-rc3
Linux Kernel=4.18-rc4
Linux Kernel=4.18-rc5
Linux Kernel=4.18-rc6
Ubuntu Linux=12.04
Ubuntu Linux=14.04
Ubuntu Linux=16.04
Ubuntu Linux=18.04
Debian GNU/Linux=8.0
Debian GNU/Linux=9.0
HPE Aruba AirWave AMP<8.2.7.1
HPE Aruba Networking ClearPass Policy Manager>=6.6.0<=6.6.9
HPE Aruba Networking ClearPass Policy Manager>=6.7.0<=6.7.5
F5 BIG-IP Access Policy Manager>=11.5.1<=11.6.3
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.3
F5 BIG-IP Access Policy Manager>=13.0.0<=13.1.1
F5 BIG-IP Access Policy Manager=14.0.0
F5 BIG-IP Advanced Firewall Manager>=11.5.1<=11.6.3
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.3
F5 BIG-IP Advanced Firewall Manager>=13.0.0<=13.1.1
F5 BIG-IP Advanced Firewall Manager=14.0.0
F5 BIG-IP Analytics>=11.5.1<=11.6.3
F5 BIG-IP Analytics>=12.1.0<=12.1.3
F5 BIG-IP Analytics>=13.0.0<=13.1.1
F5 BIG-IP Analytics=14.0.0
f5 big-ip application acceleration manager>=11.5.1<=11.6.3
f5 big-ip application acceleration manager>=12.1.0<=12.1.3
f5 big-ip application acceleration manager>=13.0.0<=13.1.1
f5 big-ip application acceleration manager=14.0.0
F5 BIG-IP Application Security Manager>=11.5.1<=11.6.3
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.3
F5 BIG-IP Application Security Manager>=13.0.0<=13.1.1
F5 BIG-IP Application Security Manager=14.0.0
f5 big-ip domain name system>=11.5.1<=11.6.3
f5 big-ip domain name system>=12.1.0<=12.1.3
f5 big-ip domain name system>=13.0.0<=13.1.1
f5 big-ip domain name system=14.0.0
F5 BIG-IP Edge Gateway>=11.5.1.<=11.6.3
F5 BIG-IP Edge Gateway>=12.1.0<=12.1.3
F5 BIG-IP Edge Gateway>=13.0.0<=13.1.1
F5 BIG-IP Edge Gateway=14.0.0
f5 big-ip fraud protection service>=11.5.1<=11.6.3
f5 big-ip fraud protection service>=12.1.0<=12.1.3
f5 big-ip fraud protection service>=13.0.0<=13.1.1
f5 big-ip fraud protection service=14.0.0
F5 BIG-IP Global Traffic Manager>=11.5.1<=11.6.3
F5 BIG-IP Global Traffic Manager>=12.1.0<=12.1.3
F5 BIG-IP Global Traffic Manager>=13.0.0<=13.1.1
F5 BIG-IP Global Traffic Manager=14.0.0
f5 big-ip link controller>=11.5.1<=11.6.3
f5 big-ip link controller>=12.1.0<=12.1.3
f5 big-ip link controller>=13.0.0<=13.1.1
f5 big-ip link controller=14.0.0
F5 BIG-IP Local Traffic Manager>=11.5.1<=11.6.3
F5 BIG-IP Local Traffic Manager>=12.0.0<=12.1.3
F5 BIG-IP Local Traffic Manager>13.0.0<=13.1.1
F5 BIG-IP Local Traffic Manager=14.0.0
F5 BIG-IP Policy Enforcement Manager>=11.5.1<=11.6.3
F5 BIG-IP Policy Enforcement Manager>=12.1.0<=12.1.3
F5 BIG-IP Policy Enforcement Manager>=13.0.0<=13.1.1
F5 BIG-IP Policy Enforcement Manager=14.0.0
F5 BIG-IP WebAccelerator>=11.5.1<=11.6.3
F5 BIG-IP WebAccelerator>=12.1.0<=12.1.3
F5 BIG-IP WebAccelerator>=13.0.0<=13.1.1
F5 BIG-IP WebAccelerator=14.0.0
F5 Traffix Systems Signaling Delivery Controller>=5.0.0<=5.1.0
F5 Traffix Systems Signaling Delivery Controller=4.4.0
A10 Networks Advanced Core Operating System=3.2.2
A10 Networks Advanced Core Operating System=3.2.2-p5
A10 Networks Advanced Core Operating System=4.1.0
A10 Networks Advanced Core Operating System=4.1.0-p11
A10 Networks Advanced Core Operating System=4.1.1-p8
A10 Networks Advanced Core Operating System=4.1.2
A10 Networks Advanced Core Operating System=4.1.2-p4
A10 Networks Advanced Core Operating System=4.1.4
A10 Networks Advanced Core Operating System=4.1.4-p1
Cisco Collaboration Meeting Rooms=1.0
Cisco DNA Center=1.2
Cisco Expressway-C=x8.10
Cisco Expressway-C=x8.10.1
Cisco Expressway-C=x8.10.2
Cisco Expressway-C=x8.10.3
Cisco Expressway-C=x8.10.4
Cisco Expressway-C=x8.11
Cisco Expressway
Cisco Meeting Management=1.0
Cisco Meeting Management=1.0.1
Cisco Network Assurance Engine=2.1\(1a\)
Cisco Threat Grid-Cloud
Cisco Webex Hybrid Data Security
Cisco Webex Video Mesh
All of
Any of
Cisco TelePresence Video Communication Server=x8.10
Cisco TelePresence Video Communication Server=x8.10.1
Cisco TelePresence Video Communication Server=x8.10.2
Cisco TelePresence Video Communication Server=x8.10.3
Cisco TelePresence Video Communication Server=x8.10.4
Cisco TelePresence Video Communication Server=x8.11
Cisco TelePresence Video Communication Server Firmware
All of
Any of
Cisco TelePresence Conductor Firmware=xc4.3
Cisco TelePresence Conductor Firmware=xc4.3.1
Cisco TelePresence Conductor Firmware=xc4.3.2
Cisco TelePresence Conductor Firmware=xc4.3.3
Cisco TelePresence Conductor Firmware=xc4.3.4
Cisco TelePresence Conductor Firmware
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.15-1
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Debian=8.0
Debian=9.0
F5 Access Policy Manager>=11.5.1<=11.6.3
F5 Access Policy Manager>=12.1.0<=12.1.3
F5 Access Policy Manager>=13.0.0<=13.1.1
F5 Access Policy Manager=14.0.0
F5 Application Security Manager>=11.5.1<=11.6.3
F5 Application Security Manager>=12.1.0<=12.1.3
F5 Application Security Manager>=13.0.0<=13.1.1
F5 Application Security Manager=14.0.0
F5 BIG-IP fraud protection services>=11.5.1<=11.6.3
F5 BIG-IP fraud protection services>=12.1.0<=12.1.3
F5 BIG-IP fraud protection services>=13.0.0<=13.1.1
F5 BIG-IP fraud protection services=14.0.0
F5 BIG-IP>=11.5.1<=11.6.3
F5 BIG-IP>=12.1.0<=12.1.3
F5 BIG-IP>=13.0.0<=13.1.1
F5 BIG-IP=14.0.0
Cisco AMP Threat Grid
Cisco Webex Video Mesh Software
Cisco TelePresence Video Communication Server=x8.10
Cisco TelePresence Video Communication Server=x8.10.1
Cisco TelePresence Video Communication Server=x8.10.2
Cisco TelePresence Video Communication Server=x8.10.3
Cisco TelePresence Video Communication Server=x8.10.4
Cisco TelePresence Video Communication Server=x8.11
Cisco TelePresence Video Communication Server Firmware
Cisco TelePresence Conductor Firmware=xc4.3
Cisco TelePresence Conductor Firmware=xc4.3.1
Cisco TelePresence Conductor Firmware=xc4.3.2
Cisco TelePresence Conductor Firmware=xc4.3.3
Cisco TelePresence Conductor Firmware=xc4.3.4
Cisco TelePresence Conductor Firmware

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=1a4f14bab1868b443f0dd3c55b689a478f82e72e

Remedy

https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2018-5390?

    CVE-2018-5390 has been classified with a CVSS score indicating a high severity, as it allows attackers to potentially impact system performance.

  • How do I fix CVE-2018-5390?

    To fix CVE-2018-5390, apply the appropriate kernel updates provided by your Linux distribution, specifically versions listed in the vulnerability advisory.

  • Which systems are affected by CVE-2018-5390?

    CVE-2018-5390 affects specific versions of the Linux kernel, including Red Hat and Debian distributions as well as various Linux-based systems.

  • What are the potential impacts of exploiting CVE-2018-5390?

    Exploiting CVE-2018-5390 could lead to denial-of-service conditions on affected systems due to excessive resource consumption.

  • Is there a known exploit for CVE-2018-5390?

    Yes, CVE-2018-5390 has known exploit methods that enable attackers to craft malicious TCP packets to exploit the vulnerability.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203