A vulnerability has been reported in Cisco Security Agent for Linux, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the detection of port scans. This can be exploited to stop the Cisco Security Agent (CSA) from responding due to excessive resource consumption by starting a port scan with certain options.
The vulnerability is reported in CSA 4.5 for Linux prior to Hotfix 184.108.40.2067, CSA 5.0 for Linux prior to Hotfix 220.127.116.11, and in the standalone CSA shipped with Cisco Unified CallManager (CUCM) 5.0 versions including 5.0(4), and Cisco Unified Presence Server (CUPS) 1.0 versions including 1.0(2).
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Subject: Cisco Security Agent for Linux Port Scan Denial of Service
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