Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability (Cisco Cisco Firepower Threat Defense Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.47 % · percentile 84 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-770 — Allocation of Resources Without Limits or Throttling
- CWE-401 — Missing Release of Memory after Effective Lifetime
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-27301
- GCVE · GCVE-0-2021-40114
Affected configurations (NVD CPE)
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:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*< 6.4.0.12cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 6.5.0 < 6.6.3cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*≥ 6.7.0 < 6.7.0.2cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*≥ 16.12 < 16.12.6cpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*≥ 17.3 < 17.3.4acpe:2.3:a:cisco:unified_threat_defense:*:*:*:*:*:*:*:*≥ 17.4 < 17.4.2cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*≥ 2.0.0 < 2.9.18
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Firepower Threat Defense Software | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |