Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2015.1760
SOL16841: GNU C Library (glibc) vulnerability CVE-2013-7423
3 July 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Mitigation
CVE Names: CVE-2013-7423
Reference: ESB-2015.1725
ESB-2015.1704
ESB-2015.1362
ESB-2015.1230
ESB-2015.1099
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/16000/800/sol16841.html
- --------------------------BEGIN INCLUDED TEXT--------------------
SOL16841: GNU C Library (glibc) vulnerability CVE-2013-7423
Security Advisory
Original Publication Date: 07/02/2015
Description
The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or
libc6) before 2.20 does not properly reuse file descriptors, which allows
remote attackers to send DNS queries to unintended locations via a large
number of request that trigger a call to the getaddrinfo function.
(CVE-2013-7423)
Impact
This vulnerability can only be exploited in F5 products by locally
authenticated users. An attacker may be able to send DNS queries to unintended
recipients, resulting in information disclosure or data loss due to the
application encountering corrupted data. No remote vulnerabilities are known.
Status
F5 Product Development has assigned ID 520153 (BIG-IP), ID 522207 (BIG-IQ),
and ID 522209 (Enterprise Manager) to this vulnerability, and has evaluated
the currently supported releases for potential vulnerability.
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 or hotfixes that address the vulnerability, refer to the following
table:
Product Versions known to Versions known to Severity Vulnerable component
be vulnerable be not vulnerable or feature
BIG-IP LTM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP AAM 11.4.0 - 11.6.0 None Low glibc
BIG-IP AFM 11.3.0 - 11.6.0 None Low glibc
BIG-IP Analytics 11.0.0 - 11.6.0 None Low glibc
BIG-IP APM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP ASM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP Edge Gateway 11.0.0 - 11.3.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP GTM 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP Link Controller 11.0.0 - 11.6.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP PEM 11.3.0 - 11.6.0 None Low glibc
BIG-IP PSM 11.0.0 - 11.4.1
10.1.0 - 10.2.4 None Low glibc
BIG-IP WebAccelerator 11.0.0 - 11.3.0
10.1.0 - 10.2.4 None Low glibc
BIG-IP WOM 11.0.0 - 11.3.0
10.1.0 - 10.2.4 None Low glibc
ARX None 6.0.0 - 6.4.0 Not vulnerable None
Enterprise Manager 3.0.0 - 3.1.1
2.1.0 - 2.3.0 None Low glibc
FirePass None 7.0.0
6.0.0 - 6.1.0 Not vulnerable None
BIG-IQ Cloud 4.0.0 - 4.5.0 None Low glibc
BIG-IQ Device 4.2.0 - 4.5.0 None Low glibc
BIG-IQ Security 4.0.0 - 4.5.0 None Low glibc
BIG-IQ ADC 4.5.0 None Low glibc
LineRate None 2.5.0 - 2.6.0 Not vulnerable None
F5 WebSafe None 1.0.0 Not vulnerable None
Traffix SDC None 4.0.0 - 4.4.0
3.3.2 - 3.5.1 Not vulnerable None
Note: As of February 17, 2015, AskF5 Security Advisory articles include the
Severity value. Security Advisory articles published before this date do not
list a Severity value.
Recommended Action
If the previous table lists a version in the Versions known to be not
vulnerable column, you can eliminate this vulnerability by upgrading to the
listed version. If the listed version is older than the version you are
currently running, or if the table does not list any version in the column,
then no upgrade candidate currently exists.
F5 responds to vulnerabilities in accordance with the Severity values
published in the previous table. The Severity values and other security
vulnerability parameters are defined in SOL4602: Overview of the F5 security
vulnerability response policy.
You should permit access to F5 products only over a secure network and limit
login access to trusted users. For more information, refer to SOL13092:
Overview of securing access to the BIG-IP system.
Supplemental Information
SOL9970: Subscribing to email notifications regarding F5 products
SOL9957: Creating a custom RSS feed to view new and updated documents
SOL4602: Overview of the F5 security vulnerability response policy
SOL4918: Overview of the F5 critical issue hotfix policy
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=+QNG
-----END PGP SIGNATURE-----