kernel security and bug fix update (RHSA-2010-0779)

Original Release Date: November 2, 2010
Last Revised: March 21, 2013
Number: ASA-2010-315
Risk Level: Low
Advisory Version: 4.0
Advisory Status: Final

1. Overview:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues:

* Information leak flaws were found in the Linux kernel Traffic Control Unit implementation. A local attacker could use these flaws to cause the kernel to leak kernel memory to user-space, possibly leading to the disclosure of sensitive information. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-2942 to this issue.

* A flaw was found in the tcf_act_police_dump() function in the Linux kernel network traffic policing implementation. A data structure in tcf_act_police_dump() was not initialized properly before being copied to user-space. A local, unprivileged user could use this flaw to cause an information leak. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-3477 to this issue.

* A missing upper bound integer check was found in the sys_io_submit() function in the Linux kernel asynchronous I/O implementation. A local, unprivileged user could use this flaw to cause an information leak. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-3067 to this issue.

More information about these vulnerabilities can be found in the security advisory issued by RedHat Linux:

2. Avaya System Products with a RHEL4 kernel installed:

Product: Affected Version(s): Risk Level: Actions:
Avaya Aura™ Application Enablement Services AES 4.2.x Low Upgrade to AES 5.2.3 or later.
Avaya Aura™ Communication Manager CM 4.x, 5.0, 5.1, 5.2 Low Upgrade to CM 5.2.1 and install Kernel Service Pack (KSP) 4 or later KSP.
Avaya Intuity AUDIX LX IALX 2.0 including 2.0 SP1 and 2.0 SP2 Low See recommended actions below. This advisory will not be addressed as no further releases are planned.
Avaya Meeting Exchange MX 5.x Low Upgrade to MX 6.2 or later.
Avaya Message Networking MN 3.1, 5.2, 5.2.2 Low Upgrade to MN 5.2.3 or later.
Avaya Messaging Storage Server MSS 4.x, 5.2.x through 5.2.7 Low Upgrade to MSS 5.2.8 or later.
Avaya Aura™ SIP Enablement Services SES 3.1.x, 4.0, 5.x Low See recommended actions below. This advisory will not be addressed as no further releases are planned.
Avaya Proactive Contact PC 4.0, 4.1.x, 4.2, 4.2.1 Low Upgrade to PC 4.2.2 or 5.0.1 or later.
Avaya Voice Portal VP 4.x Low Upgrade to VP 5.1.2 or later.

Recommended Actions for System Products:
Avaya strongly recommends that customers follow networking and security best practices by implementing firewalls, ACLs, physical security or other appropriate access restrictions. Though Avaya believes such restrictions should always be in place; risk to Avaya's product and the surrounding network from this potential vulnerability may be mitigated by ensuring these practices are implemented until such time as a product update is available or the recommended action is applied. Further restrictions as deemed necessary based on the customer's security policies may be required during this interim period.

3. Avaya Software-Only Products:

Avaya software-only products operate on general-purpose operating systems. Occasionally vulnerabilities may be discovered in the underlying operating system or applications that come with the operating system. These vulnerabilities often do not impact the software-only product directly but may threaten the integrity of the underlying platform.

In the case of this advisory Avaya software-only products are not affected by the vulnerability directly but the underlying Linux platform may be. Customers should determine on which Linux operating system the product was installed and then follow that vendor's guidance.

Product: Actions:
Avaya Aura™ Application Enablement Services 4.x/5.x Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the AES application.
CVLAN Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the CVLAN application.
Avaya Integrated Management Suite (IMS) Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the IMS application.
Avaya Aura™ Presence Services Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the PS application.
Avaya Aura™ System Manager 1.0 Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the SMGR application.
Voice Portal Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the Voice Portal application.

Recommended Actions for Software-Only Products:
In the event that the affected package is installed, Avaya recommends that customers follow recommended actions supplied by RedHat Linux.

4. Additional Information:

Additional information may also be available via the Avaya support website and through your Avaya account representative. Please contact your Avaya product support representative, or dial 1-800-242-2121, with any questions.

5. Disclaimer:

ALL INFORMATION IS BELIEVED TO BE CORRECT AT THE TIME OF PUBLICATION AND IS PROVIDED "AS IS". AVAYA INC., ON BEHALF ITSELF AND ITS SUBSIDIARIES AND AFFILIATES (HEREINAFTER COLLECTIVELY REFERRED TO AS "AVAYA"), DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND FURTHERMORE, AVAYA MAKES NO REPRESENTATIONS OR WARRANTIES THAT THE STEPS RECOMMENDED WILL ELIMINATE SECURITY OR VIRUS THREATS TO CUSTOMERS' SYSTEMS. IN NO EVENT SHALL AVAYA BE LIABLE FOR ANY DAMAGES WHATSOEVER ARISING OUT OF OR IN CONNECTION WITH THE INFORMATION OR RECOMMENDED ACTIONS PROVIDED HEREIN, INCLUDING DIRECT, INDIRECT, INCIDENTAL, STATUTORY, CONSEQUENTIAL DAMAGES, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF AVAYA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

THE INFORMATION PROVIDED HERE DOES NOT AFFECT THE SUPPORT AGREEMENTS IN PLACE FOR AVAYA PRODUCTS. SUPPORT FOR AVAYA PRODUCTS CONTINUES TO BE EXECUTED AS PER EXISTING AGREEMENTS WITH AVAYA.

6. Revision History:

V 1.0 - November 2, 2010 - Initial Statement issued.
V 2.0 - December 19, 2011 - Changed AES, CM, MN, MSS and VP affected versions and actions.
V 3.0 - April 4, 2012 - Changed PC affected versions and actions.
V 4.0 - March 21, 2013 - Changed MX actions and advisory status to final.

Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or securityalerts@avaya.com.

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