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Security Bulletin: IBM QRadar SIEM is vulnerable to 3RD PARTY CPU hardware utilizing speculative execution cache timing side-channel analysis known as Variant 4 or SpectreNG (CVE-2018-3639, CVE-2018-3640)

Security Bulletin


Summary

Speculative execution is a technique used by many modern processors to improve performance by predicting which instructions may be executed based on past execution history. An attacker with local user access may be able to utilize sequences of speculative execution to perform a cache timing side-channel analysis.

Vulnerability Details

CVEID: CVE-2018-3639
Description: Multiple Intel CPU's could allow a local attacker to obtain sensitive information, caused by utilizing sequences of speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known. By conducting targeted cache side-channel attacks, an attacker could exploit this vulnerability to bypass security restrictions and gain read access to privileged memory. Note: This vulnerability is the Speculative Store Bypass (SSB), also known as Variant 4 or "SpectreNG".
CVSS Base Score: 4.3
CVSS Temporal Score: For the current score, see: https://exchange.xforce.ibmcloud.com/vulnerabilities/143569
CVSS Environmental Score: *Undefined
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

CVEID: CVE-2018-3640
Description: Multiple Intel CPU's could allow a local attacker to obtain sensitive information, caused by utilizing sequences of speculative execution that perform speculative reads of system registers. By conducting targeted cache side-channel attacks, an attacker could exploit this vulnerability to determine the values stored in system registers. Note: This vulnerability is the Rogue System Register Read (RSRE), also known as Variant 3a.
CVSS Base Score: 4.3
CVSS Temporal Score: For the current score, see: https://exchange.xforce.ibmcloud.com/vulnerabilities/143570
CVSS Environmental Score: *Undefined
CVSS Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
 

Affected Products and Versions

  • IBM QRadar SIEM 7.2.0 to 7.2.8 Patch 14
  • IBM QRadar SIEM 7.3.0 to 7.3.1 Patch 6

Remediation/Fixes


Workarounds and Mitigations

Please note in order to mitigate CVE-2018-3639 and CVE-2018-3640 microcode will need to be updated on all appliances along with the Kernel update that is included in the QRadar Patch. Please see the links below for available microcode updates.

For Lenovo Appliance M5 Firmware installs using ISO/IMM, see:

Lenovo x3550 M5 and Lenovo x3650 M5


For Lenovo M4 Appliance Firmware installs using USB keys, see:



For Lenovo M4 Appliance Firmware installs using ISO/IMM, see:
 

For Lenovo Appliance M3 Firmware installs using USB keys, see:


For Dell Appliances please get the latest BIOS for your server from https://support.dell.com .


Get Notified about Future Security Bulletins

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

January 22, 2018: 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.

Disclaimer

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.

Document information

More support for: IBM QRadar SIEM

Operating system(s): Linux

Software edition: All Editions

Reference #: 0796076

Modified date: 24 January 2019