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Security Advisory - FragmentSmack Vulnerability in Linux Kernel

  • SA No:huawei-sa-20190123-01-linux
  • Initial Release Date: 2019-01-23
  • Last Release Date: 2020-08-05

There is a DoS vulnerability in the Linux Kernel versions 3.9+ known as a FragmentSmack attack. Remote attackers could send fragmented IPv4 or IPv6 packets to the affected device to trigger time and calculation reassembly algorithms that could consume excessive CPU resources, resulting in a DoS condition. (Vulnerability ID: HWPSIRT-2018-08115)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2018-5391.

Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190123-01-linux-en

Product Name

Affected Version

Resolved Product and Version

Atomu-L03

Versions earlier than 8.0.0.144(C605CUSTC605D1)

8.0.0.144(C605CUSTC605D1)

Atomu-L11

Versions earlier than 8.0.0.144(C782CUSTC782D1)

8.0.0.144(C782CUSTC782D1)

Atomu-L21

Versions earlier than 8.0.0.140(C432CUSTC432D1)

8.0.0.140(C432CUSTC432D1)

Atomu-L23

Versions earlier than 8.0.0.144(C605CUSTC605D1)

8.0.0.144(C605CUSTC605D1)

Atomu-L29A

Versions earlier than 8.0.0.137(C432CUSTC432D1)

8.0.0.137(C432CUSTC432D1)

Versions earlier than 8.0.0.142(C185CUSTC185D1)

8.0.0.142(C185CUSTC185D1)

Versions earlier than 8.0.0.142(C461CUSTC461D1)

8.0.0.142(C461CUSTC461D1)

Versions earlier than 8.0.0.162(C636CUSTC636D1)

8.0.0.162(C636CUSTC636D1)

Atomu-L41

Versions earlier than 8.0.0.143(C461CUSTC461D1)

8.0.0.143(C461CUSTC461D1)

Atomu-L42

Versions earlier than 8.0.0.143(C636CUSTC636D1)

8.0.0.143(C636CUSTC636D1)

BLA-L09C

Versions earlier than 9.0.0.159(C185E2R1P13T8)

9.0.0.159(C185E2R1P13T8)

Versions earlier than 9.0.0.160(C605E2R1P12T8)

9.0.0.160(C605E2R1P12T8)

Versions earlier than 9.0.0.161(C432E4R1P11T8)

9.0.0.161(C432E4R1P11T8)

BLA-L29C

Versions earlier than 8.0.0.151(C635)

8.0.0.151(C635)

Versions earlier than 9.0.0.159(C185E2R1P13T8)

9.0.0.159(C185E2R1P13T8)

Versions earlier than 9.0.0.159(C636E2R1P13T8)

9.0.0.159(C636E2R1P13T8)

Versions earlier than 9.0.0.160(C605E2R1P12T8)

9.0.0.160(C605E2R1P12T8)

Versions earlier than 9.0.0.161(C432E4R1P11T8)

9.0.0.161(C432E4R1P11T8)

BLA-TL00B

Versions earlier than 9.0.0.156(C01E86R1P15T8)

9.0.0.156(C01E86R1P15T8)

Charlotte-L09C

Versions earlier than 9.0.0.159(C185E4R1P11T8)

9.0.0.159(C185E4R1P11T8)

Versions earlier than 9.0.0.161(C605E2R1P9T8)

9.0.0.161(C605E2R1P9T8)

Versions earlier than 9.0.0.163(C432E5R1P9T8)

9.0.0.163(C432E5R1P9T8)

Charlotte-L29C

Versions earlier than 9.0.0.159(C185E4R1P11T8)

9.0.0.159(C185E4R1P11T8)

Versions earlier than 9.0.0.161(C605E2R1P11T8)

9.0.0.161(C605E2R1P11T8)

Versions earlier than 9.0.0.163(C432E5R1P9T8)

9.0.0.163(C432E5R1P9T8)

Versions earlier than 9.0.0.168(C636E2R1P12T8)

9.0.0.168(C636E2R1P12T8)

Cornell-AL00IND

Versions earlier than 9.1.0.331(C675E2R1P9T8)

9.1.0.331(C675E2R1P9T8)

Duke-L09

Duke-L09C636B189

DUK-L09 8.0.0.369(C636)

Emily-L09C

Versions earlier than 9.0.0.159(C185E2R1P12T8)

9.0.0.159(C185E2R1P12T8)

Versions earlier than 9.0.0.160(C432E7R1P11T8)

9.0.0.160(C432E7R1P11T8)

Versions earlier than 9.0.0.161(C605E2R1P11T8)

9.0.0.161(C605E2R1P11T8)

Emily-L29C

Versions earlier than 8.1.0.154(C635)

8.1.0.154(C635)

Versions earlier than 9.0.0.159(C185E2R1P12T8)

9.0.0.159(C185E2R1P12T8)

Versions earlier than 9.0.0.159(C461E2R1P11T8)

9.0.0.159(C461E2R1P11T8)

Versions earlier than 9.0.0.160(C432E7R1P11T8)

9.0.0.160(C432E7R1P11T8)

Versions earlier than 9.0.0.161(C605E2R1P12T8)

9.0.0.161(C605E2R1P12T8)

Versions earlier than 9.0.0.168(C636E7R1P13T8)

9.0.0.168(C636E7R1P13T8)

EulerOS

2.2.RC3

2.2.11.SPC2

2.2.RC5

V200R002C20

V200R003C00

V200R003C00SPC616

V200R005C00

V200R005C00SPC315

Figo-L11

Versions earlier than 8.0.0.138(C782)

8.0.0.138(C782)

Versions earlier than 8.0.0.159(C432)

8.0.0.159(C432)

Figo-L31

Versions earlier than 8.0.0.125(C530)

8.0.0.125(C530)

Versions earlier than 8.0.0.137(C33)

8.0.0.137(C33)

FusionSphere OpenStack

V100R006C00

6.5.0

V100R006C00RC2

V100R006C10

V100R006C10RC1

V100R006C10RC2

V100R006C10SPC100

V100R006C10SPC200

V100R006C10SPC301

V100R006C10SPC500

V100R006C10SPC530

V100R006C10SPC600

V100R006C10U10

V100R006C10U20

V100R006C30

V100R006C30SPC100

HUAWEI P20

8.1.0.175(C00)

9.0.0.125(C00E76R1P21T8)

HUAWEI P20 Pro

8.1.0.176(C00)

9.0.0.156(C00E54R1P15T8)

HUAWEI Y6 2018

8.0.0.133(C432CUSTC432D1)

8.0.0.140(C432CUSTC432D1)

HUAWEI Y6 Prime 2018

8.0.0.142(C461CUSTC461D1)

8.0.0.143(C461CUSTC461D1)

HUAWEI Y7 2018

8.0.0.141(C569CUSTC569D1)

8.0.0.150(C569CUSTC569D1)

Jimmy-TL00A

Versions earlier than Jimmy-TL00AC01B172

Jimmy-TL00AC01B172

Leland-AL10B

Versions earlier than 8.0.0.133(C00)

LelandP-AL00C 8.0.0.133(C00)

London-AL40B

Versions earlier than 8.0.0.216(C00)

8.0.0.216(C00)

London-TL40B

Versions earlier than 8.0.0.216(C01)

8.0.0.216(C01)

NEO-AL00D

8.1.0.175(C786)

9.0.0.156(C786E84R1P13T8)

S6700

V200R008C00

V200R019C10SPC500

Selina-L02

Versions earlier than Selina-L02C432B159

Selina-L02C432B159

Toronto-L01

Versions earlier than Toronto-L01C464B164CUSTC464D001

Toronto-L01C464B164CUSTC464D001

Toronto-L03

Versions earlier than Toronto-L03C469B191CUSTC469D001

Toronto-L03C469B191CUSTC469D001

Toronto-L21

Versions earlier than Toronto-L21C10B178CUSTC10D001

Toronto-L21C10B178CUSTC10D001

Versions earlier than Toronto-L21C432B181CUSTC432D001

Toronto-L21C432B181CUSTC432D001

Versions earlier than Toronto-L21C569B182CUSTC569D001

Toronto-L21C569B182CUSTC569D001

Toronto-L22

Versions earlier than Toronto-L22C636B189CUSTC636D001

Toronto-L22C636B189CUSTC636D001

Toronto-L23

Versions earlier than Toronto-L23C469B190CUSTC469D001

Toronto-L23C469B190CUSTC469D001



A remote attacker may be able to trigger a denial-of-service condition.


The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Temporal Score: 6.5 (E:U/RL:O/RC:C)


This vulnerability can be exploited only when the following conditions are present:

The attacker could gain access to the device network.

Vulnerability details:

Remote attackers could send fragmented IPv4 or IPv6 packets to the affected device to trigger time and calculation reassembly algorithms that could consume excessive CPU resources, resulting in a DoS condition.


Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/psirt/report-vulnerabilities.

This vulnerability was publicly disclosed.

2020-08-05 V1.4 UPDATED Updated the "Software Versions and Fixes" section;

2020-07-22 V1.3 UPDATED Updated the "Software Versions and Fixes" section;

2020-07-15 V1.2 UPDATED Updated the "Software Versions and Fixes" section;

2020-01-15 V1.1 UPDATED Updated the "Software Versions and Fixes" section;

2019-01-23 V1.0 INITIAL


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To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

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