Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vulnerable.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HCisco Firepower Threat Defense
APPCisco6.4.0 – 6.4.0.13 (bez)6.6.0 – 6.6.5.1 (bez)6.7.0 – 6.7.0.3 (bez)7.0.0 – 7.0.1 (bez)Cisco Secure Firewall Management Center
APPCisco3.1.0.1Cisco Snort
APPCisco3.0.0.0 – 3.1.0.100 (bez)
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