First published: Tue Aug 21 2007(Updated: )
Cisco IP Phone 7940 and 7960 with P0S3-08-6-00 firmware, and other SIP firmware before 8.7(0), allows remote attackers to cause a denial of service (device reboot) via (1) a certain sequence of 10 invalid SIP INVITE and OPTIONS messages; or (2) a certain invalid SIP INVITE message that contains a remote tag, followed by a certain set of two related SIP OPTIONS messages.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco VoIP Phone CP-7940 | <=8.70 | |
Cisco VoIP Phone CP-7940 | =3.0-p0s3-08-6-00_firmware | |
Cisco VoIP Phone CP-7940 | =3.1-p0s3-08-6-00_firmware | |
Cisco VoIP Phone CP-7940 | =3.2-p0s3-08-6-00_firmware | |
Cisco VoIP Phone CP-7940 | =8.6-p0s3-08-6-00_firmware | |
Cisco VoIP Phone CP-7960 | <=8.70 |
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CVE-2007-4459 is classified as a medium severity vulnerability that can lead to denial of service via device reboot.
Updating the firmware to version 8.7(0) or later on affected Cisco IP Phone models will resolve CVE-2007-4459.
CVE-2007-4459 affects Cisco IP Phone models 7940 and 7960 with firmware versions up to 8.6.
CVE-2007-4459 enables remote attackers to cause a denial of service through specific sequences of invalid SIP messages.
There are no specific workarounds for CVE-2007-4459; the only definitive solution is to apply the firmware update.