high
7.8
CWE
20 400
Advisory Published
CVE Published
Updated

CVE-2018-5391: The Linux kernel, versions 3.9+, IP implementation is vulnerable to denial of service conditions with low rates of specially modified packets

First published: Mon Jul 30 2018(Updated: )

A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithms by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. External References: <a href="https://access.redhat.com/articles/3553061">https://access.redhat.com/articles/3553061</a> <a href="https://www.kb.cert.org/vuls/id/641765">https://www.kb.cert.org/vuls/id/641765</a> A fix is a merge commit in the Linux kernel tree: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c30f1fc041b74ecdb072dd44f858750414b8b19f">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c30f1fc041b74ecdb072dd44f858750414b8b19f</a> consisting of the following commits: 7969e5c40dfd04799d4341f1b7cd266b6e47f227 385114dec8a49b5e5945e77ba7de6356106713f4 fa0f527358bd900ef92f925878ed6bfbd51305cc

Credit: cret@cert.org

Affected SoftwareAffected VersionHow to fix
Linux Kernel>=3.9<=4.18
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=6.4
Red Hat Enterprise Linux Server=6.5
Red Hat Enterprise Linux Server=6.6
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=6.7
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Server=6.6
Red Hat Enterprise Linux Server=7.2
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Debian Linux=8.0
Debian Linux=9.0
Ubuntu=12.04
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Windows 10
Windows 10=1607
Windows 10=1703
Windows 10=1709
Windows 10=1803
Microsoft Windows 7=sp1
Microsoft Windows
Microsoft Windows RT
Microsoft Windows Server=sp2
Microsoft Windows Server=r2-sp1
Microsoft Windows Server 2008 Itanium=r2-sp1
Microsoft Windows Server
Microsoft Windows Server=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016=1709
Microsoft Windows Server 2016=1803
F5 Access Policy Manager>=11.5.1<11.6.5.1
F5 Access Policy Manager>=12.1.0<12.1.5
F5 Access Policy Manager>=13.0.0<13.1.3
F5 Access Policy Manager>=14.0.0<14.0.1.1
F5 Access Policy Manager>=14.1.0<14.1.2.4
F5 BIG-IP Advanced Firewall Manager>=11.5.1<11.6.5.1
F5 BIG-IP Advanced Firewall Manager>=12.1.0<12.1.5
F5 BIG-IP Advanced Firewall Manager>=13.0.0<13.1.3
F5 BIG-IP Advanced Firewall Manager>=14.0.0<14.0.1.1
F5 BIG-IP Advanced Firewall Manager>=14.1.0<14.1.2.4
F5 BIG-IP Analytics>=11.5.1<11.6.5.1
F5 BIG-IP Analytics>=12.1.0<12.1.5
F5 BIG-IP Analytics>=13.0.0<13.1.3
F5 BIG-IP Analytics>=14.0.0<14.0.1.1
F5 BIG-IP Analytics>=14.1.0<14.1.2.4
F5 BIG-IP Application Acceleration Manager>=11.5.1<11.6.5.1
F5 BIG-IP Application Acceleration Manager>=12.1.0<12.1.5
F5 BIG-IP Application Acceleration Manager>=13.0.0<13.1.3
F5 BIG-IP Application Acceleration Manager>=14.0.0<14.0.1.1
F5 BIG-IP Application Acceleration Manager>=14.1.0<14.1.2.4
F5 Application Security Manager>=11.5.1<11.6.5.1
F5 Application Security Manager>=12.1.0<12.1.5
F5 Application Security Manager>=13.0.0<13.1.3
F5 Application Security Manager>=14.0.0<14.0.1.1
F5 Application Security Manager>=14.1.0<14.1.2.4
F5 BIG-IP>=11.5.1<11.6.5.1
F5 BIG-IP>=12.1.0<12.1.5
F5 BIG-IP>=13.0.0<13.1.3
F5 BIG-IP>=14.0.0<14.0.1.1
F5 BIG-IP>=14.1.0<14.1.2.4
F5 BIG-IP Edge Gateway>=11.5.1<11.6.5.1
F5 BIG-IP Edge Gateway>=12.1.0<12.1.5
F5 BIG-IP Edge Gateway>=13.0.0<13.1.3
F5 BIG-IP Edge Gateway>=14.0.0<14.0.1.1
F5 BIG-IP Edge Gateway>=14.1.0<14.1.2.4
F5 BIG-IP Fraud Protection Service>=11.5.1<11.6.5.1
F5 BIG-IP Fraud Protection Service>=12.1.0<12.1.5
F5 BIG-IP Fraud Protection Service>=13.0.0<13.1.3
F5 BIG-IP Fraud Protection Service>=14.0.0<14.0.1.1
F5 BIG-IP Fraud Protection Service>=14.1.0<14.1.2.4
Riverbed SteelApp Traffic Manager>=11.5.1<11.6.5.1
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.5
Riverbed SteelApp Traffic Manager>=13.0.0<13.1.3
Riverbed SteelApp Traffic Manager>=14.0.0<14.0.1.1
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.2.4
F5 BIG-IP Link Controller>=11.5.1<11.6.5.1
F5 BIG-IP Link Controller>=12.1.0<12.1.5
F5 BIG-IP Link Controller>=13.0.0<13.1.3
F5 BIG-IP Link Controller>=14.0.0<14.0.1.1
F5 BIG-IP Link Controller>=14.1.0<14.1.2.4
Riverbed SteelApp Traffic Manager>=11.5.1<11.6.5.1
Riverbed SteelApp Traffic Manager>=12.1.0<12.1.5
Riverbed SteelApp Traffic Manager>=13.0.0<13.1.3
Riverbed SteelApp Traffic Manager>=14.0.0<14.0.1.1
Riverbed SteelApp Traffic Manager>=14.1.0<14.1.2.4
F5 BIG-IP Policy Enforcement Manager>=11.5.1<11.6.5.1
F5 BIG-IP Policy Enforcement Manager>=12.1.0<12.1.5
F5 BIG-IP Policy Enforcement Manager>=13.0.0<13.1.3
F5 BIG-IP Policy Enforcement Manager>=14.0.0<14.0.1.1
F5 BIG-IP Policy Enforcement Manager>=14.1.0<14.1.2.4
F5 BIG-IP WebAccelerator>=11.5.1<11.6.5.1
F5 BIG-IP WebAccelerator>=12.1.0<12.1.5
F5 BIG-IP WebAccelerator>=13.0.0<13.1.3
F5 BIG-IP WebAccelerator>=14.0.0<14.0.1.1
F5 BIG-IP WebAccelerator>=14.1.0<14.1.2.4
All of
Siemens RUGGEDCOM RM1224<6.1
Siemens RuggedCom RM1224 LTE
All of
Siemens ROX II Firmware<2.13.3
Siemens ROX II OS
All of
Siemens SCALANCE M-800<6.1
Siemens Scalance M-800 Firmware
All of
Siemens Scalance S615 EEC Firmware<6.1
Siemens Scalance S615 Firmware
All of
Siemens Scalance S602 Firmware<2.0
Siemens SCALANCE SC-600 family
All of
Siemens SCALANCE W1700 IEEE 802.11ac<2.0
Siemens SCALANCE W1700 IEEE 802.11ac Firmware
All of
Siemens SCALANCE W700 IEEE 802.11a/b/g/n Firmware<6.4
Siemens SCALANCE W700 IEEE 802.11a/b/g/n
All of
Siemens SIMATIC CP 1242-7 GPRS<3.2
Siemens SIMATIC CP 1242-7
All of
Siemens SIMATIC CP 1243-1 Firmware<3.2
Siemens SIMATIC CP 1243-1
All of
Siemens SIMATIC CP 1243-7 LTE EU Firmware<3.2
Siemens Simatic Net CP1243-7 LTE US
All of
Siemens SIMATIC CP 1243-7 LTE/US Firmware<3.2
Siemens Simatic Net CP 1243-7 LTE US Firmware
All of
Siemens SIMATIC CP 1243-8 IRC Firmware<3.2
Siemens Simatic Net CP 1243-8 IRC Firmware
All of
Siemens Simatic CP 1542SP-1 Firmware<2.1
Siemens Simatic CP 1542SP-1 IRC
All of
Siemens SIMATIC CP 1542SP-1 IRC Firmware<2.1
Siemens SIMATIC NET CP 1542SP-1 IRC (incl. SIPLUS variants)
All of
Siemens Simatic CP 1543-1 Firmware<2.2
Siemens Simatic CP 1543-1
All of
Siemens Simatic CP 1543SP-1 Firmware<2.1
Siemens Simatic CP 1543SP-1
All of
Siemens Simatic RF185C Firmware<1.3
Siemens Simatic RF185C Firmware
All of
Siemens Simatic RF186C<1.3
Siemens Simatic RF186C Firmware
All of
Siemens Simatic RF186C<1.3
Siemens Simatic RF186Ci Firmware
All of
Siemens Simatic RF188<1.3
Siemens Simatic RF188 Firmware
All of
Siemens Simatic RF188CI Firmware<1.3
Siemens Simatic RF188CI Firmware
All of
Siemens SINEMA Remote Connect Server Firmware>=1.1<2.0.1
Siemens SINEMA Remote Connect
Siemens RUGGEDCOM RM1224<6.1
Siemens RuggedCom RM1224 LTE
Siemens ROX II Firmware<2.13.3
Siemens ROX II OS
Siemens SCALANCE M-800<6.1
Siemens Scalance M-800 Firmware
Siemens Scalance S615 EEC Firmware<6.1
Siemens Scalance S615 Firmware
Siemens Scalance S602 Firmware<2.0
Siemens SCALANCE SC-600 family
Siemens SCALANCE W1700 IEEE 802.11ac<2.0
Siemens SCALANCE W1700 IEEE 802.11ac Firmware
Siemens SCALANCE W700 IEEE 802.11a/b/g/n Firmware<6.4
Siemens SCALANCE W700 IEEE 802.11a/b/g/n
Siemens SIMATIC CP 1242-7 GPRS<3.2
Siemens SIMATIC CP 1242-7
Siemens SIMATIC CP 1243-1 Firmware<3.2
Siemens SIMATIC CP 1243-1
Siemens SIMATIC CP 1243-7 LTE EU Firmware<3.2
Siemens Simatic Net CP1243-7 LTE US
Siemens SIMATIC CP 1243-7 LTE/US Firmware<3.2
Siemens Simatic Net CP 1243-7 LTE US Firmware
Siemens SIMATIC CP 1243-8 IRC Firmware<3.2
Siemens Simatic Net CP 1243-8 IRC Firmware
Siemens Simatic CP 1542SP-1 Firmware<2.1
Siemens Simatic CP 1542SP-1 IRC
Siemens SIMATIC CP 1542SP-1 IRC Firmware<2.1
Siemens SIMATIC NET CP 1542SP-1 IRC (incl. SIPLUS variants)
Siemens Simatic CP 1543-1 Firmware<2.2
Siemens Simatic CP 1543-1
Siemens Simatic CP 1543SP-1 Firmware<2.1
Siemens Simatic CP 1543SP-1
Siemens Simatic RF185C Firmware<1.3
Siemens Simatic RF185C Firmware
Siemens Simatic RF186C<1.3
Siemens Simatic RF186C Firmware
Siemens Simatic RF186C<1.3
Siemens Simatic RF186Ci Firmware
Siemens Simatic RF188<1.3
Siemens Simatic RF188 Firmware
Siemens Simatic RF188CI Firmware<1.3
Siemens Simatic RF188CI Firmware
Siemens SINEMA Remote Connect Server Firmware>=1.1<2.0.1
Siemens SINEMA Remote Connect
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.133-1
6.12.21-1
6.12.22-1

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=c30f1fc041b74ecdb072dd44f858750414b8b19f

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this Linux kernel vulnerability?

    The vulnerability ID of this Linux kernel vulnerability is CVE-2018-5391.

  • What is the severity level of CVE-2018-5391?

    CVE-2018-5391 has a severity level of high.

  • What is the affected software for CVE-2018-5391?

    The affected software for CVE-2018-5391 includes various versions of the Linux kernel, such as linux-aws, linux-azure, linux-euclid, linux-oem, linux, and more.

  • How can I fix CVE-2018-5391?

    To fix CVE-2018-5391, update to the recommended versions of the affected software provided by the respective vendors.

  • Where can I find more information about CVE-2018-5391?

    You can find more information about CVE-2018-5391 on the Red Hat and CERT websites, as well as the official Linux kernel git repository.

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