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AUSCERT External Security Bulletin Redistribution
ESB-2020.3038.2
glibc vulnerability CVE-2020-10029
6 January 2021
===========================================================================
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
Revision History: January 6 2021: Additional vulnerable versions added by vendor
September 4 2020: Initial Release
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K38481791: glibc vulnerability CVE-2020-10029
Original Publication Date: 03 Sep, 2020
Latest Publication Date: 06 Jan, 2021
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 - |None | | | |
| | |16.0.1 | | | | |
| +------+----------+----------+ | | |
| |15.x |15.1.0 - |None | | | |
| | |15.1.2 | | | | |
|BIG-IP (LTM, AAM, +------+----------+----------+ | | |
|Advanced WAF, AFM, |14.x |14.1.0 - |None | | | |
|Analytics, APM, ASM, | |14.1.3 | | | | |
|DDHD, DNS, FPS, GTM, +------+----------+----------+Low |3.3 |glibc |
|Link Controller, PEM,|13.x |13.1.0 - |None | | | |
|SSLO) | |13.1.3 | | | | |
| +------+----------+----------+ | | |
| |12.x |12.1.0 - |None | | | |
| | |12.1.5 | | | | |
| +------+----------+----------+ | | |
| |11.x |11.6.1 - |None | | | |
| | |11.6.5 | | | | |
+---------------------+------+----------+----------+--------+------+----------+
| |7.x |7.0.0 - |None | | | |
| | |7.1.0 | | | | |
|BIG-IQ Centralized +------+----------+----------+ | | |
|Management |6.x |6.0.0 - |None |Low |3.3 |glibc |
| | |6.1.0 | | | | |
| +------+----------+----------+ | | |
| |5.x |5.4.0 |None | | | |
+---------------------+------+----------+----------+--------+------+----------+
|Traffix SDC |5.x |5.1.0 |None |Medium |6.2 |glibc |
+---------------------+------+----------+----------+--------+------+----------+
^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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