voip technologyHow voipCisco Patches VoIP Gateway Flaws A core component of Cisco's enterprise VoIP system is vulnerable to several serious security flaws. The flaws could allow remote attackers to compromise a company's VoIP network, redirect or listen in on calls, says VoIP Main Page Internet Security Systems (ISS). According to an advisory issued by Cisco, successful exploitation of the vulnerabilities may result in severe issues with Cisco CallManager and related IP technology voip telephony services. Triggering a memory allocation and buffer overflow may allow remote Voip providercode execution and breach of confidentiality. Excess memory VoIP Main Page allocation can cause resource starvation resulting in high CPU utilization, unresponsive terminal services, the inability to run CCM Admin, or map drives. This may then lead to phones not responding, phones unregistering from the Cisco CallManager, or Cisco VoIP Main Page Call Manager restarting. CCM is the software-based call-processing component michigan technology voip of the Cisco IP telephony solution, which extends enterprise telephony features and functions to packet telephony network devices such as IP phones, VoIP Main Page media processing devices, voice- over-IP (VoIP) gateways, Cisco voipand multimedia applications. Cisco CallManager 3.3 and earlier, 4.0, and 4.1 are vulnerable to Denial of Service (DoS) attacks, memory leaks, and memory corruption which may result in services being interrupted, servers rebooting, or arbitrary code being executed. How voipCisco Patches VoIP Gateway Flaws A core component of Cisco's enterprise VoIP system is vulnerable to several serious security flaws. The flaws could allow remote attackers to compromise a company's VoIP network, redirect or listen in on calls, says VoIP Main Page Internet Security Systems (ISS). According to an advisory issued by Cisco, successful exploitation of the vulnerabilities may result in severe issues with Cisco CallManager and related IP technology voip telephony services. Triggering a memory allocation and buffer overflow may allow remote Voip providercode execution and breach of confidentiality. Excess memory VoIP Main Page allocation can cause resource starvation resulting in high CPU utilization, unresponsive terminal services, the inability to run CCM Admin, or map drives. This may then lead to phones not responding, phones unregistering from the Cisco CallManager, or Cisco VoIP Main Page Call Manager restarting. CCM is the software-based call-processing component michigan technology voip of the Cisco IP telephony solution, which extends enterprise telephony features and functions to packet telephony network devices such as IP phones, VoIP Main Page media processing devices, voice- over-IP (VoIP) gateways, Cisco voipand multimedia applications. Cisco CallManager 3.3 and earlier, 4.0, and 4.1 are vulnerable to Denial of Service (DoS) attacks, memory leaks, and memory corruption which may result in services being interrupted, servers rebooting, or arbitrary code being executed. |
