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Cisco 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 telephony services. Triggering a memory allocation and buffer overflow may allow remote code execution and breach of confidentiality. Excess memory allocation can cause resource starvation resulting in
high VoIP Main Page
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 Call Manager restarting. CCM is the software-based call-processing component of the Cisco IP telephony solution, which extends enterprise telephony features and functions to packet telephony network devices VoIP Main Page
such as IP phones, media processing devices, voice- over-IP (VoIP)
gateways, and multimedia applications. Cisco CallManager 3.3 and earlier, 4.0, and 4.1 are vulnerable VoIP Main Page
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.
Cisco 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 telephony services. Triggering a memory allocation and buffer overflow may allow remote code execution and breach of confidentiality. Excess memory allocation can cause resource starvation resulting in
high VoIP Main Page
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 Call Manager restarting. CCM is the software-based call-processing component of the Cisco IP telephony solution, which extends enterprise telephony features and functions to packet telephony network devices VoIP Main Page
such as IP phones, media processing devices, voice- over-IP (VoIP)
gateways, and multimedia applications. Cisco CallManager 3.3 and earlier, 4.0, and 4.1 are vulnerable VoIP Main Page
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.
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