NVD Vulnerability Detail
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CVE-2024-20330
Summary

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.

Publication Date Oct. 24, 2024, 2:15 a.m.
Registration Date Oct. 24, 2024, 5 a.m.
Last Update Oct. 25, 2024, 9:56 p.m.
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
シスコシステムズの Cisco Firepower Threat Defense ソフトウェアにおけるバッファの終端後のメモリ領域に対するアクセスに関する脆弱性
Title シスコシステムズの Cisco Firepower Threat Defense ソフトウェアにおけるバッファの終端後のメモリ領域に対するアクセスに関する脆弱性
Summary

シスコシステムズの Cisco Firepower Threat Defense ソフトウェアには、バッファの終端後のメモリ領域に対するアクセスに関する脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。 
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date Oct. 23, 2024, midnight
Registration Date Aug. 7, 2025, 10:14 a.m.
Last Update Aug. 7, 2025, 10:14 a.m.
Affected System
シスコシステムズ
Cisco Firepower Threat Defense ソフトウェア 7.0.0.0
Cisco Firepower Threat Defense ソフトウェア 7.0.0.1
Cisco Firepower Threat Defense ソフトウェア 7.0.1
Cisco Firepower Threat Defense ソフトウェア 7.0.1.1
Cisco Firepower Threat Defense ソフトウェア 7.0.2
Cisco Firepower Threat Defense ソフトウェア 7.0.2.1
Cisco Firepower Threat Defense ソフトウェア 7.0.3
Cisco Firepower Threat Defense ソフトウェア 7.0.4
Cisco Firepower Threat Defense ソフトウェア 7.0.5
Cisco Firepower Threat Defense ソフトウェア 7.0.6
Cisco Firepower Threat Defense ソフトウェア 7.0.6.1
Cisco Firepower Threat Defense ソフトウェア 7.0.6.2
Cisco Firepower Threat Defense ソフトウェア 7.0.6.3
Cisco Firepower Threat Defense ソフトウェア 7.1.0
Cisco Firepower Threat Defense ソフトウェア 7.1.0.1
Cisco Firepower Threat Defense ソフトウェア 7.1.0.3
Cisco Firepower Threat Defense ソフトウェア 7.2.0
Cisco Firepower Threat Defense ソフトウェア 7.2.0.1
Cisco Firepower Threat Defense ソフトウェア 7.2.1
Cisco Firepower Threat Defense ソフトウェア 7.2.2
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2025年08月07日]
  掲載		 Aug. 7, 2025, 10:14 a.m.