Tcl (Tool Command Language) provides a powerful platform for creating integration applications that tie together diverse applications, protocols, devices, and frameworks. When paired with the Tk toolkit, Tcl provides a fast and powerful way to create cross-platform GUI applications.
Two denial of service flaws were found in the Tcl regular expression handling engine. If Tcl or an application using Tcl processed a specially-crafted regular expression, it would lead to excessive CPU and memory consumption. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CVE-2007-4772 and CVE-2007-6067 to these issues.
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.x, 6.1.x thru 6.3.2||Low||For 6.1.x and earlier, upgrade to 6.2 and install security patch 1 or later.
For 6.2, install security patch 1 or later.
VMware deployments may also upgrade to 6.3 or later.
For 6.3.x standalone and System Platform deployments, upgrade to 6.3.3 or later.
|Avaya Aura® Application Server 5300:
||2.x, 3.0 including 3.0 SP5||Low||Upgrade to 3.0 SP6 or later.|
|Avaya IQ||5.2 thru 5.2.5||Low||Upgrade to 5.2.6 and install Patch 2 or later.|
|Avaya Aura® Communication Manager||6.0.x, 6.2.x||Low||Upgrade to 6.3 or later.|
|Avaya Communication Server 1000:
||6.x, 7.5 thru 7.6 SP4||Low||Upgrade to 7.6 SP5 or later.|
|Avaya Aura® Conferencing||7.0 thru 7.2 SP2||Low||Upgrade to 7.2 SP3 or later.|
|Avaya Aura® Conferencing Standard Edition||6.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||8.x||Low||Upgrade to 9.0 or later.|
|Avaya Aura® Messaging||6.0 thru 6.2.x||Low||Upgrade to 6.3 or later.|
|Avaya one-X® Client Enablement Services||6.1.x||Low||Upgrade to 6.2 or later.|
|Avaya Aura® Presence Services||6.0, 6.1 including SP1||Low||Upgrade to 6.1 SP2 or later.|
|Avaya Aura® Session Manager||6.1.4 and earlier||Low||Upgrade to 6.1.5 or later.|
|Avaya Aura® System Manager||5.x, 6.0.x, 6.1||Low||Upgrade to 6.1.1 or later.|
|Avaya Aura® System Platform||1.x, 6.0.x thru 6.3||Low||Upgrade to 6.3.1 or later.|
|Avaya Aura® Communication Manager Utility Services||6.0 thru 18.104.22.168.8, 6.2 thru 22.214.171.124.15||Low||For 6.0.x, upgrade to 6.1 and install SP 126.96.36.199.8 or later.
For 6.1, install SP 188.8.131.52.8 or later.
For 6.2, install SP 184.108.40.206.15 or later.
All versions can be upgraded to 6.3 or later.
|Avaya Voice Portal||5.x||Low||Migrate to Experience Portal 6.0 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 products and the surrounding network from this potential vulnerability may be mitigated by ensuring these practices are implemented until such time as an Avaya provided product update or the recommended Avaya action is applied. Further restrictions as deemed necessary based on the customer's security policies may be required during this interim period, but customers should not modify the System Product operating system or application unless the change is approved by Avaya. Making changes that are not approved may void the Avaya product service contract.
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:
|These are a low risk for all products because non-standard regular expressions are not processed by default and exploit would require privilege user permissions which would not provide additional capability.|
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.
|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 Aura® Experience Portal||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the EP 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 Secure Access Link Gateway||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the SAL Gateway 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.|
|Avaya Voice Portal||Depending on the Operating System provided by customers, the affected package may be installed on the underlying Operating System supporting the VP 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 5, 2013 - Initial Statement issued.
V 2.0 - October 29, 2013 - Changed AES, AS5300, CM, IPOAS, one-X CES, SMGR, SP and CMUS affected versions and actions. Changed Conferencing SE and VP actions.
V 3.0 - June 12, 2014 - Changed AES, AAC, CS1K and AAM affected versions and actions.
V 4.0 - July 14, 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 email@example.com.
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