Nortel Networks SIP Multimedia PC Client SIP header denial of service
| nortel-sipheader-dos (35154) |  Medium Risk |
Description:
The Nortel Networks SIP Multimedia PC Client is vulnerable to a denial of service. A remote attacker could exploit this vulnerability by sending a SIP message with a specially-crafted header to cause the device to crash.
*CVSS:
| Base Score: | 3.5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 2.8 |
| Exploitability: | Unproven |
| Remediation Level: | Unavailable |
| Report Confidence: | Uncorroborated |
Consequences:
Denial of Service
Remedy:
Apply the appropriate update for your system, as listed in Nortel Advisory No. VIPER-2007-044 and VIPER-2007-045. See References.
References:
- Nortel Networks SIP Multimedia PC Client Web site: Nortel Networks: Products, Services & Solutions - SIP Multimedia PC Client.
- Nortel Web site: Nortel: Technical Support: Potential Denial of Service Attack Vulnerabilities (Advisory No. VIPER-2007-044 and VIPER-2007-045) with Nortel MCS PC Client.
- VIPER-2007-045: Improper message parsing vulnerability in Nortel Networks PC Client may allow a remote attacker to crash the client.
- BID-24536: Nortel Networks PC Client Soft Phone SIP Message Parsing Module Denial of Service Vulnerability
- CVE-2007-3361: The Nortel PC Client SIP Soft Phone 4.1 3.5.208[20051015] allows remote attackers to cause a denial of service (device crash) via a SIP message with a malformed header.
- SA25782: Nortel PC Client SIP Soft Phone Denial of Service
- VUPEN/ADV-2007-2319: Nortel PC Client SIP Soft Phone Headers Processing Denial of Service Vulnerabilities
Platforms Affected:
- Nortel Networks SIP Multimedia PC Client 4.1.3.5.208
Reported:
Jun 19, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.