Linksys SPA941 VoIP Phone SIP denial of service
|linksys-spa941-sip-dos (33856)||Medium Risk|
The Linksys SPA941 VoIP Phone firmware is vulnerable to a denial of service attack, caused by improper handling of SIP packets. By sending a specially-crafted SIP packet containing a \377 character, a remote attacker could crash the device.
Denial of Service
No remedy available as of December 1, 2013.
- Full-Disclosure Mailing List, Tue Apr 24 2007 - 07:34:27 CDT: Linksys SPA941 remote DOS with \377 character.
- Linksys SPA941 VoIP Phone Web site: Linksys.com - Products/Business Solutions/VOIP/Linksys Voice System/SPA941.
- BID-23619: Linksys SPA941 \377 Character Denial of Service Vulnerability
- CVE-2007-2270: The Linksys SPA941 VoIP Phone allows remote attackers to cause a denial of service (device reboot) via a 0377 (0xff) character in the From header, and possibly certain other locations, in a SIP INVITE request.
- OSVDB ID: 34481: Cisco Linksys SPA941 VoIP Phone Malformed SIP INVITE Request DoS
- SA25031: Linksys SPA941 SIP Message Denial of Service
- SECTRACK ID: 1017957: Linksys SPA941 Phone Can Be Crashed By Remote Users
- VUPEN/ADV-2007-1532: Linksys SPA941 SIP Phone Messages Handling Remote Denial of Service Vulnerability
- Linksys SPA941 5.1.5
Apr 24, 2007
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