PostgreSQL is an advanced object-relational database management system (DBMS).
A signedness issue was found in the way the crypt() function in the PostgreSQL pgcrypto module handled 8-bit characters in passwords when using Blowfish hashing. Up to three characters immediately preceding a non-ASCII character (one with the high bit set) had no effect on the hash result, thus shortening the effective password length. This made brute-force guessing more efficient as several different passwords were hashed to the same value. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2011-2483 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 | 4.x, 5.x, 6.1.x | Low | Upgrade to 6.2 or later. |
| Avaya Aura® Communication Manager | 5.x, 6.x | None | See Mitigating Factors table below. |
| Avaya IP Office Application Server | 6.x, 7.x | None | See Mitigating Factors table below. |
| Avaya Message Networking | 3.x, 5.2.x | Low | Upgrade to 6.3 or later. |
| Avaya Aura® Messaging | 6.x | None | See Mitigating Factors table below. |
| Avaya Aura® SIP Enablement Services | 4.0.x through 5.2.x | Low | See recommended actions below. This advisory will not be addressed as no further releases are planned. |
| Avaya Aura® Communication Manager Utility Services | 6.0.x, 6.1.x, 6.2 through 6.2.4.0.15 | Low | For 6.0 and 6.1, upgrade to 6.2 and install Service Pack
6.2.5.0.15 or later. For 6.2, install Service Pack 6.2.5.0.15 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:
| Vulnerability | Mitigating Factors |
|---|---|
|
CVE-2011-2483 |
This is a low risk for AES, MN, SES and CMUS because blowfish hashing is not
used by default. There is no risk for CM, IPOAS and Messaging because postgresql is not installed, only the postgresql-libs package is installed. A CM 5.x server installed co-resident with SES has postgresql installed but there is no risk to CM. |
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 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 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 - December 12, 2011 - Initial Statement issued.
V 2.0 - August 29, 2012 - Changed AES affected versions and actions.
V 3.0 - January 8, 2013 - Changed CMUS affected versions and actions.
V 4.0 - July 22, 2014 - Changed MN 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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