IBM Support

Security Bulletin: The Linux Kernel as used in IBM QRadar SIEM is vulnerable to denial service. (CVE-2017-6214)

Security Bulletin


IBM QRadar SIEM includes vulnerable components (e.g., framework libraries) that may be identified and exploited with automated tools.

Vulnerability Details

CVEID: CVE-2017-6214
 Linux Kernel is vulnerable to a denial of service, caused by an error in the tcp_splice_read() function. By sending a specially crafted TCP packet, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop and consume an overly large amount of CPU resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

· IBM QRadar SIEM 7.3 - 7.3 Patch 7

Workarounds and Mitigations


Get Notified about Future Security Bulletins




IBM X-Force Ethical Hacking Team: Ron Craig, Warren Moynihan, Jonathan Fitz-Gerald, John Zuccato, Rodney Ryan, Chris Shepherd, Dmitriy Beryoza

Change History

18 December 2017: First Publish

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

[{"Product":{"code":"SSBQAC","label":"IBM QRadar SIEM"},"Business Unit":{"code":"BU008","label":"Security"},"Component":"Not Applicable","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.3","Edition":"All Editions"}]

Document Information

Modified date:
16 June 2018