A vulnerability in the Snort 2 and Snort 3 TCP and UDP detection engine of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause memory corruption, which could cause the Snort detection engine to restart unexpectedly.
This vulnerability is due to improper memory management when the Snort detection engine processes specific TCP or UDP packets. An attacker could exploit this vulnerability by sending crafted TCP or UDP packets through a device that is inspecting traffic using the Snort detection engine. A successful exploit could allow the attacker to restart the Snort detection engine repeatedly, which could cause a denial of service (DoS) condition. The DoS condition impacts only the traffic through the device that is examined by the Snort detection engine. The device can still be managed over the network.
Note: Once a memory block is corrupted, it cannot be cleared until the Cisco Firepower 2100 Series Appliance is manually reloaded. This means that the Snort detection engine could crash repeatedly, causing traffic that is processed by the Snort detection engine to be dropped until the device is manually reloaded.
Metrics
Affected Vendors & Products
References
History
Thu, 24 Oct 2024 17:15:00 +0000
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First Time appeared |
Cisco
Cisco firepower Threat Defense Software |
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CPEs | cpe:2.3:a:cisco:firepower_threat_defense_software:*:*:*:*:*:*:*:* | |
Vendors & Products |
Cisco
Cisco firepower Threat Defense Software |
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Metrics |
ssvc
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Wed, 23 Oct 2024 17:15:00 +0000
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Description | A vulnerability in the Snort 2 and Snort 3 TCP and UDP detection engine of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause memory corruption, which could cause the Snort detection engine to restart unexpectedly. This vulnerability is due to improper memory management when the Snort detection engine processes specific TCP or UDP packets. An attacker could exploit this vulnerability by sending crafted TCP or UDP packets through a device that is inspecting traffic using the Snort detection engine. A successful exploit could allow the attacker to restart the Snort detection engine repeatedly, which could cause a denial of service (DoS) condition. The DoS condition impacts only the traffic through the device that is examined by the Snort detection engine. The device can still be managed over the network. Note: Once a memory block is corrupted, it cannot be cleared until the Cisco Firepower 2100 Series Appliance is manually reloaded. This means that the Snort detection engine could crash repeatedly, causing traffic that is processed by the Snort detection engine to be dropped until the device is manually reloaded. | |
Title | Cisco Firepower Threat Defense Software for Cisco Firepower 2100 Series TCP UDP Snort 2 and Snort 2 Denial of Service Vulnerability | |
Weaknesses | CWE-788 | |
References |
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Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2024-10-23T17:08:44.510Z
Updated: 2024-10-24T16:23:16.139Z
Reserved: 2023-11-08T15:08:07.641Z
Link: CVE-2024-20330
Vulnrichment
Updated: 2024-10-24T16:23:10.346Z
NVD
Status : Awaiting Analysis
Published: 2024-10-23T17:15:17.663
Modified: 2024-10-25T12:56:36.827
Link: CVE-2024-20330
Redhat
No data.