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      <title>CVE-2022-20922</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2022-20922</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Cisco Firepower Threat Defense Software, Cisco Umbrella Insights Virtual Appliance, Cisco Cyber Vision&lt;/p&gt;
&lt;p&gt;Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device.&#13;
&#13; These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition.&#13;
&#13; Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details [&amp;#34;#details&amp;#34;] section of this advisory for more information.&#13;
&#13; Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Cisco Firepower Threat Defense Software, Cisco Umbrella Insights Virtual Appliance, Cisco Cyber Vision&lt;/p&gt;
&lt;p&gt;Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device.&#13;
&#13; These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition.&#13;
&#13; Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details [&amp;#34;#details&amp;#34;] section of this advisory for more information.&#13;
&#13; Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.&lt;/p&gt;</content:encoded>
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