The kernel packages contain the Linux kernel, the core of any Linux operating system.
This update fixes the following security issues:
* A NULL pointer dereference flaw was found in the igb driver in the Linux kernel. If both the Single Root I/O Virtualization (SR-IOV) feature and promiscuous mode were enabled on an interface using igb, it could result in a denial of service when a tagged VLAN packet is received on that interface. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4263 to this issue.
* A missing sanity check was found in vbd_create() in the Xen hypervisor implementation. As CD-ROM drives are not supported by the blkback back-end driver, attempting to use a virtual CD-ROM drive with blkback could trigger a denial of service (crash) on the host system running the Xen hypervisor. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4238 to this issue.
* A flaw was found in the Linux kernel execve() system call implementation. A local, unprivileged user could cause large amounts of memory to be allocated but not visible to the OOM (Out of Memory) killer, triggering a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4243 to this issue.
* A flaw was found in fixup_page_fault() in the Xen hypervisor implementation. If a 64-bit para-virtualized guest accessed a certain area of memory, it could cause a denial of service on the host system running the Xen hypervisor. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4255 to this issue.
* A missing initialization flaw was found in the bfa driver used by Brocade Fibre Channel Host Bus Adapters. A local, unprivileged user could use this flaw to cause a denial of service by reading a file in the "/sys/class/fc_host/host#/statistics/" directory. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2010-4343 to this issue.
* Missing initialization flaws in the Linux kernel could lead to information leaks. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2010-3296, CVE-2010-3877, CVE-2010-4072, CVE-2010-4073, CVE-2010-4075, CVE-2010-4080, CVE-2010-4081, CVE-2010-4158 to this issue.
More information about these vulnerabilities can be found in the security advisory issued by Red Hat:
| Product: | Affected Version(s): | Risk Level: | Actions: |
|---|---|---|---|
| Avaya Aura® Application Enablement Services | 5.2.x, 6.1, 6.1.1 | Low | Upgrade to Application Enablement Services 6.1.2 or later. |
Avaya Aura® Application Server 5300:
|
2.0 | Low | Upgrade to AS5300 Patch Bundle 12 or later. |
| Avaya Aura® Communication Manager | 5.2.x, 6.0.x | Low | Communication Manager 5.2.x: Upgrade to Communication Manager 5.2.1
with Kernel Service Pack #4 or later. Communication Manager 6.0.x: Upgrade to Communication Manager 6.2 or later. |
Avaya Communication Server 1000:
|
6.0, 7.0, 7.5 | Low | Upgrade to Communication Server 1000 7.6 or later. |
| Avaya Aura® Conferencing Standard Edition | 6.0.x | Low | See recommended actions and Mitigating Factors table below. This advisory will not be addressed as no further releases are planned. It is recommended that customers migrate to one of Avaya's conferencing solutions including Aura® Conferencing 7.0 or later. |
| Avaya IP Office Application Server | 6.1, 7.0 | Low | Upgrade to IP Office Application Server 8.0 or later. |
| Avaya IQ | 5.2 thru 5.2.5 | Low | Upgrade to 5.2.6 and install Patch 2 or later. |
| Avaya Aura® Presence Services | 6.0.x, 6.1, 6.1.1 | Low | Upgrade to Presence Services 6.1.2 or later. |
| Avaya Aura® Session Manager | 1.1.x, 5.2.x, 6.0.x, 6.1, 6.1 SP1 | Low | Upgrade to Session Manager 6.1 SP2 or later. |
| Avaya Aura® System Manager | 5.2.x, 6.0.x, 6.1 thru 6.1 SP3 | Low | Upgrade to System Manager 6.1 SP4 or later. |
| Avaya Aura® System Platform | 1.1, 6.0.x | Low | Upgrade to System Platform 6.2 or later. |
| Avaya Aura® Communication Manager Utility Services | 6.0.x, 6.1.x | Low | Upgrade to Communication Manager Utility Services 6.2 or later. |
| Avaya Voice Portal | 5.0.x, 5.1, 5.1 SP1 | Low | Upgrade to Voice Portal 5.1 SP2 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.
When determining risk, Avaya takes into account many factors as outlined by Avaya's Security Vulnerability Classification Policy. The following table describes factors that mitigate the risk of specific vulnerabilities for affected Avaya products:
| Vulnerability | Mitigating Factors |
|---|---|
|
CVE-2010-4263 |
This vulnerability could not be exploited because SR-IOV and promiscuous mode are not enabled on these System Products. |
|
CVE-2010-4238 CVE-2010-4343 CVE-2010-4255 |
These vulnerabilities could only be exploited by an authenticated user performing non-standard actions. |
|
CVE-2010-4343 |
This vulnerability could not be exploited because Brocade Fibre Channel Host Bus Adapters are not used on these System Products. |
|
CVE-2010-3296 CVE-2010-3877 CVE-2010-4072 CVE-2010-4073 CVE-2010-4075 CVE-2010-4080 CVE-2010-4081 CVE-2010-4158 |
The potential for information leaks is limited to authenticated users, and there is a very low probability of getting data that is not already available to authorized users. |
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 Red Hat regarding their
Enterprise Linux.
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.
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.
V 1.0 - February 22, 2011 - Initial Statement issued.
V 2.0 - January 20, 2012 - Updated affected versions and actions for
AS5300, SM, SMGR, and VP.
V 3.0 - March 5, 2012 - Updated IP Office AS and PS affected versions
and actions.
V 4.0 - April 6, 2012 - Updated AES, CM, SP, and CM US affected versions
and actions.
V 5.0 - August 4, 2014 - Updated CS 1000 and Conferencing Standard Edition actions.
V 6.0 - June 26, 2015 - Updated IQ affected versions and actions, and set 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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