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AUSCERT External Security Bulletin Redistribution
ESB-2016.2098
sol52439336: FreeType vulnerabilities CVE-2014-9746 and CVE-2014-9747
7 September 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP
F5 ARX
F5 BIG-IQ
Publisher: F5 Networks
Operating System: Network Appliance
Virtualisation
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2014-9747 CVE-2014-9746
Reference: ESB-2015.2556
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/k/52/sol52439336.html
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sol52439336: FreeType vulnerabilities CVE-2014-9746 and CVE-2014-9747
Security Advisory
Original Publication Date: 09/06/2016
Vulnerability Description
CVE-2014-9746
The (1) t1_parse_font_matrix function in type1/t1load.c, (2)
cid_parse_font_matrix function in cid/cidload.c, (3) t42_parse_font_matrix
function in type42/t42parse.c, and (4) ps_parser_load_field function in
psaux/psobjs.c in FreeType before 2.5.4 do not check return values, which
allows remote attackers to cause a denial of service (uninitialized memory
access and application crash) or possibly have unspecified other impact via a
crafted font.
CVE-2014-9747
The t42_parse_encoding function in type42/t42parse.c in FreeType before 2.5.4
does not properly update the current position for immediates-only mode, which
allows remote attackers to cause a denial of service (infinite loop) via a
Type42 font.
Impact
Parsing certain fonts from untrusted sources may allow the unauthorized
disclosure of information or a denial-of-service (DoS) attack. BIG-IP and
BIG-IQ systems are not vulnerable in default configurations.
Security Issue Status
F5 Product Development has assigned ID 611976 (BIG-IP and BIG-IQ) and ID
513595 (ARX) to this 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 be vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature
BIG-IP LTM 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP AAM 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
BIG-IP AFM 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
BIG-IP Analytics 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
11.2.1
BIG-IP APM 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP ASM 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP DNS 12.0.0 - 12.1.1 None Low FreeType font library
BIG-IP Edge Gateway 11.2.1 None Low FreeType font library
10.2.1 - 10.2.4
BIG-IP GTM 11.4.0 - 11.6.1 None Low FreeType font library
11.2.1
10.2.1 - 10.2.4
BIG-IP Link Controller 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP PEM 12.0.0 - 12.1.1 None Low FreeType font library
11.4.0 - 11.6.1
BIG-IP PSM 11.4.0 - 11.4.1 None Low FreeType font library
10.2.1 - 10.2.4
BIG-IP WebAccelerator 11.2.1 None Low FreeType font library
10.2.1 - 10.2.4
BIG-IP WOM 11.2.1 None Low FreeType font library
10.2.1 - 10.2.4
BIG-IP WebSafe None 12.0.0 - 12.1.0 Not vulnerable None
11.6.0 - 11.6.1
ARX 6.2.0 - 6.4.0 None Low FreeType font library
Enterprise Manager None 3.1.1 Not vulnerable None
FirePass None 7.0.0 Not vulnerable None
BIG-IQ Cloud 4.0.0 - 4.5.0 None Low FreeType font library
BIG-IQ Device 4.2.0 - 4.5.0 None Low FreeType font library
BIG-IQ Security 4.0.0 - 4.5.0 None Low FreeType font library
BIG-IQ ADC 4.5.0 None Low FreeType font library
BIG-IQ Centralized Management 5.0.0 None Low FreeType font library
4.6.0
BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable None
F5 iWorkflow None 2.0.0 Not vulnerable None
LineRate None 2.5.0 - 2.6.1 Not vulnerable None
Traffix SDC None 5.0.0 Not vulnerable None
4.0.0 - 4.4.0
Vulnerability 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 Versions known to be not vulnerable 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.
To determine the necessary upgrade path for your BIG-IQ system, you should
understand the BIG-IQ product offering name changes. For more information,
refer to SOL21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow
systems.
Mitigation
BIG-IP and BIG-IQ
To mitigate this vulnerability for BIG-IP and BIG-IQ systems, you should not
alter the default configuration to allow the system to parse fonts from
untrusted sources.
ARX
None
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
SOL167: Downloading software and firmware from F5
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