ASA-2006-180 (RHSA-2006-0437)

Updated kernel packages for Red Hat Enterprise Linux 3 Update 8 (RHSA-2006-0437)

Original Release Date: September 15, 2006
Last Revised: September 15, 2006
Number: ASA-2006-180
Risk Level: Low
Advisory Version: 1.0
Advisory Status: Interim

1. Overview:

The Linux kernel manages the communication between software and hardware as well as the hardware resources of a computer running the Linux operating system.

Red Hat has issued an updated version of the kernel packages for Enterprise Linux 3. Below is a list of the security issues fixed in the update as reported by Red Hat:

a flaw in the USB devio handling of device removal that allowed a local user to cause a denial of service (crash)
a flaw in the exec() handling of multi-threaded tasks using ptrace() that allowed a local user to cause a denial of service (hang of a user process)
a difference in "sysretq" operation of EM64T (as opposed to Opteron) processors that allowed a local user to cause a denial of service (crash) upon return from certain system calls
a flaw in unaligned accesses handling on Intel Itanium processors that allowed a local user to cause a denial of service (crash)
an info leak on AMD-based x86 and x86_64 systems that allowed a local user to retrieve the floating point exception state of a process run by a different user
a flaw in IPv4 packet output handling that allowed a remote user to bypass the zero IP ID countermeasure on systems with a disabled firewall
a minor info leak in socket option handling in the network code
a flaw in IPv4 netfilter handling for the unlikely use of SNMP NAT processing that allowed a remote user to cause a denial of service (crash) or potential memory corruption

The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2005-3055, CVE-2005-3107, CVE-2006-0741, CVE-2006-0744, CVE-2006-0742, CVE-2006-1056, CVE-2006-1242, CVE-2006-1343, and CVE-2006-2444 to these issues.

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

https://rhn.redhat.com/errata/RHSA-2006-0437.html

2. Avaya System Products with affected kernel packages installed:

Product:	Affected Version(s):	Risk Level:	Actions:
Avaya S87XX/S8500/S8300	all versions of CM	Low	See recommended actions below. This issue will be addressed in accordance with Avaya's Product Security Vulnerability Response Policy

Recommended Actions:
For all system products which use vulnerable versions of the kernel, Avaya recommends that customers restrict local and network access to the server. This restriction should be enforced through the use of physical security, firewalls, ACLs, VPNs, and other generally-accepted networking practices until such time as an update becomes available and can be installed.

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 vendors guidance:

4. Software-Only Products:

Product:	Affected Version(s):	Risk Level:	Actions:
Avaya Interactive Response(IR)	All	None	Depending on the Operating System provided by customers, the affected packages may be installed on the underlying Operating System supporting the IR application. The IR application does not require the software described in this advisory.
CVLAN	All	None	Depending on the Operating System provided by customers, the affected packages may be installed on the underlying Operating System supporting the CVLAN application. The CVLAN application does not require the software described in this advisory.
Avaya Integrated Management Suite(IMS)	All	Low	See recommended actions below.

Recommended Actions:
Avaya recommends that customers follow recommended actions supplied by the Operating System vendor (e.g. RedHat Linux) or remove the affected packages.

5. 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.

6. 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 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, 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.

7. Revision History:

V 1.0 - September 15, 2006 - Initial Statement issued.

Send information regarding any discovered security problems with Avaya products to either the contact noted in the product's documentation or [email protected].

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