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             AUSCERT External Security Bulletin Redistribution

         systemd vulnerabilities CVE-2018-16864 and CVE-2018-16865
                               26 March 2020


        AusCERT Security Bulletin Summary

Product:           F5 BIG-IP products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Increased Privileges -- Existing Account
                   Denial of Service    -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16865 CVE-2018-16864 

Reference:         ASB-2019.0109

Original Bulletin: 

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K06044762: systemd vulnerabilities CVE-2018-16864 and CVE-2018-16865

Original Publication Date: 26 Mar, 2020

Security Advisory Description

o CVE-2018-16864

    An allocation of memory without limits, that could result in the stack
    clashing with another memory region, was discovered in systemd-journald
    when a program with long command line arguments calls syslog. A local
    attacker may use this flaw to crash systemd-journald or escalate his
    privileges. Versions through v240 are vulnerable.

  o CVE-2018-16865

    An allocation of memory without limits, that could result in the stack
    clashing with another memory region, was discovered in systemd-journald
    when many entries are sent to the journal socket. A local attacker, or a
    remote one if systemd-journal-remote is used, may use this flaw to crash
    systemd-journald or execute code with journald privileges. Versions through
    v240 are vulnerable.


A locally authenticated attacker may be able to use the flaw to stop
systemd-journald from responding or escalate user privileges.

Security Advisory Status

F5 Product Development has assigned ID 757617 (BIG-IP) to this vulnerability.

To determine if your product and version have been evaluated for this
vulnerability, refer to the Applies to (see versions) box. To determine if your
release is known to be vulnerable, the components or features that are affected
by the vulnerability, and for information about releases, point releases, or
hotfixes that address the vulnerability, refer to the following table. For more
information about security advisory versioning, refer to K51812227:
Understanding Security Advisory versioning.

|             |      |Versions  |Fixes     |          |CVSSv3|Vulnerable      |
|Product      |Branch|known to  |introduced|Severity  |score^|component or    |
|             |      |be        |in        |          |1     |feature         |
|             |      |vulnerable|          |          |      |                |
|             |15.x  |15.0.0 -  |15.1.0    |          |      |                |
|             |      |15.0.1    |          |          |      |                |
|             +------+----------+----------+          |      |                |
|BIG-IP (LTM, |14.x  |14.1.0 -  |  |          |      |                |
|AAM, AFM,    |      |14.1.2    |          |          |      |                |
|Analytics,   +------+----------+----------+          |      |                |
|APM, ASM,    |13.x  |None      |Not       |Low       |3.7   |systemd-journald|
|DNS, FPS,    |      |          |applicable|          |      |                |
|GTM, Link    +------+----------+----------+          |      |                |
|Controller,  |12.x  |None      |Not       |          |      |                |
|PEM)         |      |          |applicable|          |      |                |
|             +------+----------+----------+          |      |                |
|             |11.x  |None      |Not       |          |      |                |
|             |      |          |applicable|          |      |                |
|             |7.x   |None      |Not       |          |      |                |
|             |      |          |applicable|          |      |                |
|BIG-IQ       +------+----------+----------+          |      |                |
|Centralized  |6.x   |None      |Not       |Not       |None  |None            |
|Management   |      |          |applicable|vulnerable|      |                |
|             +------+----------+----------+          |      |                |
|             |5.x   |None      |Not       |          |      |                |
|             |      |          |applicable|          |      |                |
|Traffix SDC  |5.x   |None      |Not       |Not       |None  |None            |
|             |      |          |applicable|vulnerable|      |                |

^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.

Security Advisory Recommended Actions

If you are running a version listed in the Versions known to be vulnerable
column, you can eliminate this vulnerability by upgrading to a version listed
in the Fixes introduced in column. If the table lists only an older version
than what you are currently running, or does not list a non-vulnerable version,
then no upgrade candidate currently exists.



Supplemental Information

o K51812227: Understanding Security Advisory versioning
  o K41942608: Overview of Security Advisory articles
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K9502: BIG-IP hotfix and point release matrix
  o K13123: Managing BIG-IP product hotfixes (11.x - 15.x)
  o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM
    systems (11.4.x and later)
  o K167: Downloading software and firmware from F5
  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents

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