Operating System:

[Linux]

Published:

08 October 2019

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3753
                        IBM QRadar Network Security
                              8 October 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM QRadar Network Security
Publisher:         IBM
Operating System:  Linux variants
Impact/Access:     Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11479 CVE-2019-11478 CVE-2019-11477

Reference:         ASB-2019.0178.2
                   ESB-2019.3739

Original Bulletin: 
   https://www.ibm.com/support/pages/node/959523
   https://www.ibm.com/support/pages/node/967597

Comment: This bulletin contains two (2) IBM security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

IBM QRadar Network Security is affected by Linux kernel vulnerabilities
(CVE-2019-11479, CVE-2019-11478, CVE-2019-11477)

Security Bulletin

Summary

IBM QRadar Network Security is affected by Linux kernel vulnerabilities

Vulnerability Details

CVEID: CVE-2019-11479
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by a
flaw when processing minimum segment size (MSS). By sending specially-crafted
MSS traffic, a remote attacker could exploit this vulnerability to cause excess
usage of system resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
162665 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)

CVEID: CVE-2019-11478
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an
issue with fragmenting the TCP retransmission queue when processing TCP
Selective Acknowledgement (SACK) capabilities. By sending specially-crafted
SACKs requests, a remote attacker could exploit this vulnerability to cause an
excess of system resource usage.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
162664 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)

CVEID: CVE-2019-11477
DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an
integer overflow when processing TCP Selective Acknowledgement (SACK)
capabilities. By sending specially-crafted SACKs requests, a remote attacker
could exploit this vulnerability to cause a kernel panic condition.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
162662 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 Network Security 5.4.0

IBM QRadar Network Security 5.5.0

Remediation/Fixes

+------------------+-----+---------------------------------------------------------------------------------------------+
|Product           |VRMF |Remediation/First Fix                                                                        |
+------------------+-----+---------------------------------------------------------------------------------------------+
|                  |     |Install Firmware 5.4.0.9 from the Available Updates page of the Local                        |
|                  |     |Management Interface, or by performing a One Time Scheduled Installation from                |
|IBM QRadar Network|     |SiteProtector.                                                                               |
|Security          |5.4.0|Or                                                                                           |
|                  |     |Download Firmware 5.4.0.9 from IBM Security License Key and Download Center and              |
|                  |     |upload and install via the Available Updates page of the Local Management                    |
|                  |     |Interface.                                                                                   |
+------------------+-----+---------------------------------------------------------------------------------------------+
|                  |     |Install Firmware 5.5.0.4 from the Available Updates page of the Local                        |
|                  |     |Management Interface, or by performing a One Time Scheduled Installation from                |
|IBM QRadar Network|     |SiteProtector.                                                                               |
|Security          |5.5.0|Or                                                                                           |
|                  |     |Download Firmware 5.5.0.4 from IBM Security License Key and Download Center and              |
|                  |     |upload and install via the Available Updates page of the Local Management                    |
|                  |     |Interface.                                                                                   |
+------------------+-----+---------------------------------------------------------------------------------------------+

Get Notified about Future Security Bulletins

References

====================================================================================

IBM QRadar Network Security is affected by an openssh vulnerability
(CVE-2018-15473)

Security Bulletin

Summary

IBM QRadar Network Security is affected by an openssh vulnerability

Vulnerability Details

CVEID: CVE-2018-15473
DESCRIPTION: OpenSSH could allow a remote attacker to obtain sensitive
information, caused by different responses to valid and invalid authentication
attempts. By sending a specially crafted request, an attacker could exploit
this vulnerability to enumerate valid usernames.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
148397 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

IBM QRadar Network Security 5.4.0

IBM QRadar Network Security 5.5.0

Remediation/Fixes

+------------------+-----+---------------------------------------------------------------------------------------------+
|Product           |VRMF |Remediation/First Fix                                                                        |
+------------------+-----+---------------------------------------------------------------------------------------------+
|                  |     |Install Firmware 5.4.0.9 from the Available Updates page of the Local                        |
|                  |     |Management Interface, or by performing a One Time Scheduled Installation from                |
|IBM QRadar Network|     |SiteProtector.                                                                               |
|Security          |5.4.0|Or                                                                                           |
|                  |     |Download Firmware 5.4.0.9 from IBM Security License Key and Download Center and              |
|                  |     |upload and install via the Available Updates page of the Local Management                    |
|                  |     |Interface.                                                                                   |
+------------------+-----+---------------------------------------------------------------------------------------------+
|                  |     |Install Firmware 5.5.0.4 from the Available Updates page of the Local                        |
|                  |     |Management Interface, or by performing a One Time Scheduled Installation from                |
|IBM QRadar Network|     |SiteProtector.                                                                               |
|Security          |5.5.0|Or                                                                                           |
|                  |     |Download Firmware 5.5.0.4 from IBM Security License Key and Download Center and              |
|                  |     |upload and install via the Available Updates page of the Local Management                    |
|                  |     |Interface.                                                                                   |
+------------------+-----+---------------------------------------------------------------------------------------------+

Get Notified about Future Security Bulletins

References

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