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Vulnerability Alert

Cisco Unity Connection Memory Leak Denial of Service Vulnerability

 
Threat Type:CWE-399: Resource Management Errors
IntelliShield ID:28266
Version:1
First Published:2013 February 18 17:42 GMT
Last Published:2013 February 18 17:42 GMT
Port: Not available
CVE:CVE-2013-1129
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Mild Damage
CVSS Base:5.0 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:4.8
Related Resources:
View related Security Notice
 
 
Version Summary:Cisco Unity Connection contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition. Updates are not available.
 
 
Description
Cisco Unity Connection contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

The vulnerability is due to the improper handling of user-supplied requests by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted requests to an affected system. The processing of such requests could cause a DoS condition, denying access to legitimate users.

Cisco has confirmed the vulnerability; however, software updates are not available.
 
Warning Indicators
Cisco Unity Connection versions 9.1(1) and prior are vulnerable.
 
IntelliShield Analysis
To exploit this vulnerability, an attacker would need access to trusted, internal networks to submit malicious requests to the targeted system. This access requirement decreases the likelihood of a successful exploit.
 
Vendor Announcements
Cisco has released a security notice for bug ID CSCud59736 at the following link: CVE-2013-1129
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to cause a memory leak in a critical process, causing the process to crash and resulting in a DoS condition.
 
Technical Information
The vulnerability is due to improper handling of TCP sessions by the affected software.

An unauthenticated, remote attacker could exploit this vulnerability by sending a sequence of crafted TCP requests. Processing the requests could trigger a memory leak in a critical process, which could cause the process to crash and result in a DoS condition.
 
Safeguards
Administrators are advised to contact the vendor regarding future updates and releases.

Administrators are advised to run both firewall and antivirus applications to minimize the potential of inbound and outbound threats.

Administrators are advised to allow only trusted users to have network access.

Administrators are advised to monitor affected systems.
 
Patches/Software
Software updates and patches are not available.
 
Alert History
 
Initial Release


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
CiscoCisco Unity Connection 9.0 (1) | 9.1 (1)

Associated Products:
N/A




Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service. This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.


LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
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