Nortel Networks SIP Multimedia PC Client SIP header denial of service
| nortel-sipheader-dos (35154) |  Low 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.
Platforms Affected:
- Nortel, Networks SIP Multimedia PC Client 4.1.3.5.208
Remedy:
Apply the appropriate update for your system, as listed in Nortel Advisory No. VIPER-2007-044 and VIPER-2007-045. See References.
Consequences:
Denial of Service
References:
- Nortel Networks SIP Multimedia PC Client Web site, Nortel Networks: Products, Services & Solutions - SIP Multimedia PC Client at http://www.nortel.com/products/01/succession/cs/sip_pcclient.html.
- 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 at http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=644578.
- VIPER-2007-045, Improper message parsing vulnerability in Nortel Networks PC Client may allow a remote attacker to crash the client at http://www.sipera.com/index.php?action=resources,threat_advisory&tid=298&.
- 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.
- FrSIRT/ADV-2007-2319: Nortel PC Client SIP Soft Phone Headers Processing Denial of Service Vulnerabilities
- SA25782: Nortel PC Client SIP Soft Phone Denial of Service
Reported:
Jun 19, 2007
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