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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.3038
                    glibc vulnerability CVE-2020-10029
                             4 September 2020

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

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

Product:           F5 BIG-IP Products
                   F5 BIG-IQ Centralized Management
                   F5 Traffix SDC
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Mitigation
CVE Names:         CVE-2020-10029  

Reference:         ESB-2020.1109
                   ESB-2020.0921

Original Bulletin: 
   https://support.f5.com/csp/article/K38481791

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K38481791:glibc vulnerability CVE-2020-10029

Security Advisory

Original Publication Date: 03 Sep, 2020

Security Advisory Description

The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack
buffer during range reduction if an input to an 80-bit long double function
contains a non-canonical bit pattern, a seen when passing a
0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps
/ieee754/ldbl-96/e_rem_pio2l.c. (CVE-2020-10029)

Impact

Specially-crafted values passed to certain glibc functions may create a
stack-based overflow, potentially leading to an unexpected process restart.

Security Advisory Status

F5 Product Development has assigned ID 939421 (BIG-IP), ID 939421-8 (BIG-IQ)
and CPF-25208, CPF-25209 (Traffix) 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 |
|                     |      |be        |in        |        |1     |or feature|
|                     |      |vulnerable|          |        |      |          |
+---------------------+------+----------+----------+--------+------+----------+
|                     |16.x  |16.0.0    |Not       |        |      |          |
|                     |      |          |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |15.x  |15.1.0    |Not       |        |      |          |
|                     |      |          |applicable|        |      |          |
|BIG-IP (LTM, AAM,    +------+----------+----------+        |      |          |
|Advanced WAF, AFM,   |14.x  |14.1.0 -  |Not       |        |      |          |
|Analytics, APM, ASM, |      |14.1.2    |applicable|        |      |          |
|DDHD, DNS, FPS, GTM, +------+----------+----------+Low     |3.3   |glibc     |
|Link Controller, PEM,|13.x  |13.1.0 -  |Not       |        |      |          |
|SSLO)                |      |13.1.3    |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |12.x  |12.1.0 -  |Not       |        |      |          |
|                     |      |12.1.5    |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |11.x  |11.6.1 -  |Not       |        |      |          |
|                     |      |11.6.5    |applicable|        |      |          |
+---------------------+------+----------+----------+--------+------+----------+
|                     |7.x   |7.0.0 -   |Not       |        |      |          |
|                     |      |7.1.0     |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|BIG-IQ Centralized   |6.x   |6.0.0 -   |Not       |Low     |3.3   |glibc     |
|Management           |      |6.1.0     |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |5.x   |5.4.0     |Not       |        |      |          |
|                     |      |          |applicable|        |      |          |
+---------------------+------+----------+----------+--------+------+----------+
|Traffix SDC          |5.x   |5.1.0     |Not       |Medium  |6.2   |glibc     |
|                     |      |          |applicable|        |      |          |
+---------------------+------+----------+----------+--------+------+----------+

^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.

Mitigation

None

Supplemental Information

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 - 16.x)
  o K15106: Managing BIG-IQ product hotfixes
  o K15113: BIG-IQ hotfix and point release matrix
  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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