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HIGH

Cisco Firepower Threat Defense Software Snort Out of Memory Denial of Service Vulnerability

Published May 3, 2022

Description

A vulnerability in the Snort detection engine integration for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause unlimited memory consumption, which could lead to a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient memory management for certain Snort events. An attacker could exploit this vulnerability by sending a series of crafted IP packets that would generate specific Snort events on an affected device. A sustained attack could cause an out of memory condition on the affected device. A successful exploit could allow the attacker to interrupt all traffic flowing through the affected device. In some circumstances, the attacker may be able to cause the device to reload, resulting in a DoS condition.

Affected products

Remediation

No remediation recorded yet.

Metrics

References (1)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published May 3, 2022
Updated Nov 6, 2024
Reserved Nov 2, 2021
CISA Vulnrichment
Updated Nov 6, 2024
NVD
Status Modified
Modified Aug 11, 2026
Red Hat
Severity n/a
Public date n/a