CVE-2021-40114

Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability

Published Oct 27, 2021 CVSS 3.1 · 6.8 Medium EPSS 2.5% KEV · Not listed
Description
Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic 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 memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3317-1 snort security update
Debian DSA Debian DSA DSA-5354-1 snort security update
EUVD EUVD EUVD-2021-27301 Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic 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 memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.
History
Type Values Removed Values Added
First Time appeared Cisco secure Firewall Threat Defense
CPEs cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*
Vendors & Products Cisco firepower Threat Defense
Cisco secure Firewall Threat Defense
Type Values Removed Values Added
First Time appeared Cisco secure Firewall Management Center
CPEs cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_management_center:2.9.15:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_management_center:2.9.16:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_management_center:2.9.17:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.16:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.17:*:*:*:*:*:*:*
Vendors & Products Cisco firepower Management Center
Cisco secure Firewall Management Center
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Nov 7, 2024, 9:43 PM
Reserved
Aug 25, 2021, 12:00 AM
Status
Modified
Published
Oct 27, 2021, 7:15 PM
Modified
Aug 11, 2026, 7:37 PM