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AUSCERT External Security Bulletin Redistribution
ESB-2014.0903
sol15319: Linux kernel TTY vulnerability CVE-2014-0196
6 June 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP
Publisher: F5
Operating System: Network Appliance
Impact/Access: Root Compromise -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2014-0196
Reference: ESB-2014.0831
ESB-2014.0784
ESB-2014.0766
ESB-2014.0735
ESB-2014.0710
Original Bulletin:
http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html
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sol15319: Linux kernel TTY vulnerability CVE-2014-0196
Security Advisory
Original Publication Date: 06/05/2014
Description
The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through
3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST"
case, which allows local users to cause a denial of service (memory corruption
and system crash) or gain privileges by triggering a race condition involving
read and write operations with long strings. (CVE-2014-0196)
Impact
Local users may be able to cause a denial-of-service (DoS) or gain privileges
by triggering a race condition.
Status
F5 Product Development has assigned ID 461646 (BIG-IP), ID 463322 (Enterprise
Manager), ID 463324 (BIG-IQ) 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 Vulnerable component or feature
BIG-IP LTM 11.1.0 - 11.5.1 11.0.0
10.0.0 - 10.2.4 TTY
BIG-IP AAM 11.4.0 - 11.5.1 None TTY
BIG-IP AFM 11.3.0 - 11.5.1 None TTY
BIG-IP
Analytics 11.1.0 - 11.5.1 11.0.0 TTY
BIG-IP APM 11.1.0 - 11.5.1 11.0.0
10.1.0 - 10.2.4 TTY
BIG-IP ASM 11.1.0 - 11.5.1 11.0.0
10.0.0 - 10.2.4 TTY
BIG-IP Edge
Gateway 11.1.0 - 11.3.0 11.0.0
10.1.0 - 10.2.4 TTY
BIG-IP GTM 11.1.0 - 11.5.1 11.0.0
10.0.0 - 10.2.4 TTY
BIG-IP Link
Controller 11.1.0 - 11.5.1 11.0.0
10.0.0 - 10.2.4 TTY
BIG-IP PEM 11.3.0 - 11.5.1 None TTY
BIG-IP PSM 11.1.0 - 11.4.1 11.0.0 - 11.4.1
10.0.0 - 10.2.4 TTY
BIG-IP
WebAccelerator 11.1.0 - 11.3.0 11.0.0
10.0.0 - 10.2.4 TTY
BIG-IP WOM 11.1.0 - 11.3.0 11.0.0
10.0.0 - 10.2.4 TTY
ARX None 6.0.0 - 6.4.0 None
Enterprise
Manager 3.1.0 - 3.1.1 3.0.0
2.1.0 - 2.3.0 TTY
FirePass None 7.0.0
6.0.0 - 6.1.0 None
BIG-IQ Cloud 4.0.0 - 4.3.0 None TTY
BIG-IQ Device 4.2.0 - 4.3.0 None TTY
BIG-IQ
Security 4.0.0 - 4.3.0 None TTY
LineRate None 2.2.0 - 2.3.1 None
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 table does not list any version in the column, then no
upgrade candidate currently exists.
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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